Walker MS 13 HP User Manual

Download

OWNER’S MANUAL

Safety, Assembly, Operating, and Maintenance Instructions

Model MS (13 HP)

™

Please Read and Save These Instructions Effective Date: 01-15-05

For Safety, Read All Safety and Operation P/N 5000-16 Instructions Prior to Operating Machine

Foreword

Thank you. . .for purchasing a Walker mower. Every effort has been made to provide you with the most reliable mower on the market, and we are sure you will be among our many satisfied customers. If for any reason this product does not perform to your expectations, please contact us at (970) 221-5614. Every customer is important to us. Your satisfaction is our goal.

Please. . .read thi s manu al thorou ghly! This manu al is to be used in co njunc tion wit h the engi ne manufacturer’s manual for the specific engine on the mower model you have purchased. Before you operate your new mower, please read this entire manual. Some of the information is crucial for proper operation and maintenance of this mower - it will help protect your investment and ensure that the mower performs to your satisfaction. Some of the information is important to your safety, and must be read and understood to help prevent possible injury to the operator or others. If anything in this manual is confusing or hard to understand, please call our service department, at (970) 221-5614, for clarification before operating or servicing this mower.

This manual covers Model MS with the Kawasaki FE400 13 HP gasoline engine.

All shields and guards must be in place for the proper and s afe operation of this machine. Where they are shown removed in this manual, it is for illustration purposes only. Do not operate this machine unless all shields and guards are in place.

Specifications given are based on the latest information available at the time this manual was produced.

Walker Mfg. Co. is continually s tr iv ing to improve the desi gn and per for ma nc e of its products. We reserve the righ t to m ake c hanges i n sp ecifi catio ns and de sign wi thout th ereby incu rring any obligation relative to previously manufactured products.

Sincerely, WALKER MANUFACTURING COMPANY

Bob Walker, President

General Information________________ 1

HIGHLIGHTED INFORMATION _____________ 1 GLOSSARY ____________________________ 1 IDENTIFYING NUMBER LOCATIONS________ 1 ENGINE SERIAL NUMBER LOCATION ______ 2 SERVICI N G OF ENGINE AND DRIVETRAIN COMPONENTS__________ 2

Specifications________________________ 3

ENGINE________________________________ 3 ELECTRICAL SYSTEM ___________________ 3 TRANSMISSION_________________________ 3 BLADE DRIVE __________________________ 4 TIRE SIZE______________________________ 4 TIRE PRESSURE ________________________ 4 DIMENSIONS (Tractor and Mower) _________ 4 MOWER DECK__________________________ 5 CURB WEIGHT__________________________ 5 DRIVE BELTS___________________________ 5 GHS SYSTEM___________________________ 6 SEAT__________________________________ 6 FRAME/BODY CONSTRUCTION ___________ 6

Component Identification_ 7 Safety Instructions _______ 10

BEFORE OPERATING___________________ 10 OPERATING___________________________ 11 MAINTENANCE ________________________ 12 SAFETY, CONTROL, AND INSTRUCTION DECALS _____________ 14

Assembly Instructions _____________ 16

SETUP INSTRUCTIONS _________________ 16

Tire Installation (Tractor)_______________ 16 Battery Service_______________________ 16

Wet Battery Service __________________ 16 Dry Battery Service __________________ 16 Battery Charging ____________________ 17 Battery Installation ___________________ 17

Mower Deck Assembly ________________ 17

Deck Caster Wheels Installation ________ 17 Deck Discharge Chute Installation ______ 18 Deck Discharge Shield Installation ______ 18 PTO Shaft Guard Installation __________ 18 Tilt-Up Roller Wheel Installation ________ 18

Mower Deck Installation on Tractor ______ 19

Deck Installation ____________________ 19 Deck Leveling ______________________ 21

PREOPERATING CHECKLIST ____________ 22

Operating Instructions_____________ 24

CONTROL IDENTIFICATION, LOCATION, AND FUNCTION _____________ 24

Ignition Switch_______________________ 24 Engine Choke________________________ 24 Engine Throttle ______________________ 25 Forward Speed Control (FSC) __________ 25 Steering Levers ______________________ 25 Blade Clutch (PTO) ___________________ 25 Parking Brake _______________________ 25 Transmission Lockout Levers __________ 26 Hourmeter __________________________ 26 Light Switch (For Optional Lights)_______ 26

STARTING THE ENGINE_________________ 28 ADJUSTING GROUND SPEED AND STEERING________________________ 28 ENGAGING THE MOWER________________ 30 STOPPING THE MACHINE _______________ 31 ADJUSTING CUTTING HEIGHT ___________ 31 TRANSMISSION LOCKOUT ______________ 32 RECOMMENDATIONS FOR MOWING ______ 32 RECOMMENDATIONS FOR TILT-UP DECK OPERATION/TRANSPORT _________ 33 GRASS HANDLING SYSTEM (GHS) _______ 34

General Information __________________ 35 Clogging Checklist ___________________ 36 Using the Tilt-Up Deck ________________ 37 Using the GHS Catcher________________ 37

Powerfil “Full” Signal Horn ___________________ 37

Cleaning the GHS Exhaust Screen ______ 37 Dumping the Catcher _________________ 38

Tailgate Dumping ___________________ 38 Using the Dump Bag _________________ 38

__________________________ 37

Table of Contents

Maintenance Instructions__________ 40

MAINTENANCE SCHEDULE CHART _______ 40 IMPORTANT TIPS FOR CARE OF THE KAWASAKI ENGINE ____________________ 41

Fuel System _________________________ 41 Starting _____________________________ 41 Cooling System ______________________ 41 Air Cleaner __________________________ 41 Oil _________________________________ 41

LUBRICATION _________________________ 42

Engine Oil ___________________________ 42

Engine Break-In Oil __________________ 42 Checking Engine Crankcase Oil Level ___ 42 Changing Engine Crankcase Oil/Oil Filter _43

Grease Fitting and Oil Point Lubrication__ 43 Mower Deck Gearbox Lubrication _______ 46 Tractor PTO Gearbox Lubrication _______ 46 Gear Axle Lubrication _________________ 47 Hydrostatic Transmission Fluid_________ 47

Checking Hydrostatic Transmission Fluid Level ______________ 47

CLEANING ____________________________ 48

Engine Air Cleaner System_____________ 48

Donaldson Radialseal™ Air Cleaner _____ 48

Fuel Filter ___________________________ 49 Engine Cooling System________________ 50

Air Intake Screen ____________________ 50 Cylinder Head Cooling Fins ____________ 50

Grass Buildup in Mower Housing________ 51 GHS Blower _________________________ 52 GHS Exhaust Screen__________________ 52 Hydrostatic Transmission Cooling Fins __ 53

CHECKING/SERVICING _________________ 53

Security of Air Filtration Components____ 53 Battery______________________________ 53

Electrolyte Level ____________________ 53 Cleaning the Terminals _______________ 54 Chargin g the Battery _________________ 54

Tire Pressure ________________________ 54 Sharpen Mower Blades ________________ 54 Drive Belts __________________________ 56 Mower Deck Gearbox Oil Seals _________ 56 Spark Plug __________________________ 56 Breaker Points _______________________ 56 Fuel Lines and Clamps ________________ 56 Blade Brake Action ___________________ 56

REPLACING/REPAIRING ________________ 57

Drive Belts __________________________ 57

Engine Belt ________________________ 58 PTO Drive Belt _____________________ 59 Ground Drive Belt ___________________ 60

Blade Overload Shear Bolts ____________ 61 PTO Shear Pin _______________________ 61 Mower Blades _______________________ 62

ADJUSTMENTS________________________ 63

Steering Levers ______________________ 63 Tilt-Up Deck Adjustable Stop ___________ 63 GHS Signal Horn Adjustment (When Horn Sounds at Wrong Time)_____ 63

Maintenance and Service Record Sheet

_______________________ 65

Operator’s Notes_ 66 Warranty_________ 67

General Information

HIGHLIGHTED INFORMATION

Walker Manufacturing recommends that any service requiring special training or tools be performed by an authorized Walker Mower Dealer. There are several general practices to be aware of in the area of safety. Most accidents associated with the operation or maintenance of a Walker Mower are caused by disregardi ng bas ic saf ety pr ecau tions or specific warnings. Such accidents, in most cases, can be prevented by being aware of the dangers present.

Information of special importance has been highlighted in bold typ e in this manual. Refer to Safety

Instructions for the meanings o f DANGER, WARNING, CAUTION, IMPORTANT, and NOTE.

GLOSSARY

There are many ter ms th at are either unique to this equipment or that ar e used as acronyms . The following terms and their definitions will help while using this manual:

• DECK is the mowing attachment mounted on

the front of the tractor which includes the carrier frame, deck housing, blade drive gearboxes, and cutter blades.

• FORW ARD SPEED CONTROL (FSC) cont r ol s

the maximum forward speed of the tractor; functioning as a cruise control.

• GRASS HANDLING SYSTEM (GHS

mowed material and deposits it in the catcher.



) collects

• POWER TAKE-OFF (PTO) transmits engine

power to run the cutter blades and GHS blower.

• POWERFIL

throughout the interior of the gr ass catcher by an oscillating delivery spo ut.



spreads the mowed material

• RIGHT HAND (RH) refers to the right-hand side

of the tractor when the operator is seated facing forward in the tractor seat.

• SIDE DISCHARGE (SD) mows but does not

collect the mowed material.

• STEERING LEVERS steer the tractor by con-

trolling the dual hydrostatic transmissions.

• TRACTOR is the prime mover, including the en-

gine, drive train, operator seat, and controls to operate the mower.

• TRANSMISSION LOCKOUT releases the hy-

drostatic transmissions to permit freewheeling the tractor.

IDENTIFYING NUMBER LOCATIONS

The tractor serial number plate is affixed to the tractor body just below the left rear corner of the seat. The mower deck serial number plate is affixed alongside the angle iron framing on the LH side of the LH mower blade d rive. Model and serial numbers are helpful when obtaining repl acement parts and maintenance assistance. For ready refer ence, please record these numbers in the space provided.

• GRASS-PAK

grass delivery s pout (in the catcher) and act ivates the “full” signal horn when the grass catcher is full.



SWITCH is mounted on the

• GROUND DRIVE refers to the dual h yd rostatic

transmissions which drive the main wheels.

• HYDROSTATIC TRANSMISSION transmits

and controls power from the ground drive belt to the main drive wheel.

• LEFT HAND (LH) refers to the left-hand side of

the tractor when the opera tor is seated facing forward in the tractor seat.

Tractor Model No. _______________________ Tractor Serial No. _______________________ Deck Serial No. _______________________ Engine Model No. _______________________ Engine Serial No. _______________________ Date of Purchase _______________________

Fill In By Purchaser

General Information

Serial Number

Tractor Serial Number Location

SERVICING OF ENGINE AND DRIVETRAIN COMPONENTS

The detailed servicing and repair of the engine, hydrostatic transmission and gearboxes are not covered in this manual. Only routine maintenance and general service instructions are provided . For the service of these components during the limited warranty period, it is important to find a local, authorized servicing agent of the component manufacturer. Any unauthorized work done on these components during the warranty pe riod may void the warra nty. If you have any difficulty finding an authorized outlet or obtaining warranty service, pleas e contact our Service Department for assistance:

Walker Manufacturing Company

5925 E. Harmony Road

Fort Collins, CO 80528

1-970-221-5614

Serial Number

Mower Deck Serial Number Location

ENGINE SERIAL NUMBER LOCATION

The Kawasaki engine model, type, and c ode numbers are located on the s tarter side of the eng ine shroud. For the m owe r mo del cove red b y th is m anual, an engine manual is available to cover the Kawasaki FE400.

Service manuals are available for each of these components from their respective manufacturers as follows:

Kawasaki Engine Kawasaki Engine Division

P.O. Box 888285 Grand Rapids, MI 49588-8285

Hydrostatic Eaton Corporation Transmissions 15151 Highway 5

Eden Prairie, MN 55344

Gearboxes (Deck) T ecumseh Products Co.

900 North Street Grafton, Wl 53024

Serial Number

Engine Serial Number Location (view from right side of tractor)

Specifications

MODEL MS

ENGINE

Manufacturer/Model Kawasaki, FE 400D, 1 Cyl. OHV (Air-Cooled) Displacement 24.5 cu. in. (401 cc) HP (@ 3600 RPM) 13.0 Max. RPM (No Load) 4000 Governed RPM 3600 Max. To rq ue [ft-lb (N Idle RPM 1300 Spark Plug Type NGK BPR5ES Spark Plug Gap .030 in. (.75 mm) Crankcase Capacity 1.35 qts (1.3 liters) Crankcase Lubricant API SC/SD/SE/SF/SG/SH Grade Oil Only with 10W-30/10W-40

Fuel Tank Capacity 1.7 Gallons (6.4 liters) Fuel Automotive Grade Unleaded Gasoline (87 Octane) Cooling System Air Cooled

ELECTRICAL SYSTEM

Battery 12 Volt, 230 CCA (Interstate SP-30) Charging System Flywheel Alternator Charging Output 13 Amp DC (Regulated) System Polarity Negative Ground Ignition Transistorized Electronic Magneto

⋅m) @ RPM] 19.5 (26.4) @ 2500

Viscosity or 40W Above 68° F (20° C) Only

Starter 12 Volt Electric Key and Solenoid Operated Interlock Switch Ignition Lockout by Seat Switch, Transmission Neutral and Blade Clutch

TRANSMISSION

Manufacturer/Model Dual Hydrostatic, Eaton Model 7, Each Wheel Independently Driven Steering Hand Lever Control / Individual Wheel Forward Speed Control Precision Friction Lock Lever, Cruise Control, with Neutral-Park

Position Service Brake Dynamic Braking through Hydrostatic Transmission Parking Brake Mechanical Pin Lock in Transmission Gear Neutral Transmission Release by Manual Dump Valve Final Drive Gear Drive Axle

Specifications

MODEL MS

TRANSMISSION (continued) Transmission Fluid

Factory Service Mobil 1 Synthetic Motor Oil (15W-50) Transmission Fluid Capacity 1 qt (1 liter) Transmission Cooling Cooling Fan Mounted on Drive Pulley

Ground Travel Speed

Forward m.p.h. (km/h) Reverse m.p.h. (km/h)

BLADE DRIVE

PTO Shaft Sliding Spline Shaft with Two (2) High-Speed U-Joints Blade Spindle Each Blade (2) Mounts Direct on Peerless Right Angle

Blade Drive Clutch and Brake Manual Belt Tightener Clutch and Scrubber Brake

0-5 (0-8) Infinitely Variable

Gearbox with Tee Gearbox in Center Connected to PTO Shaft

(Complete Geared Drive, Peerless Model 1000 Gearboxes)

(Stops Blades within Five (5) Seconds of Disengagement) Max. Blade Speed

[22 in. (56 cm) Blade] @ 3600 RPM Engine

TIRE SIZE

Deck Caster Wheel 2.80/2.50-4 Pneumatic (4-Ply) Deck Caster Wheel (Optional) 8.25 x 2.75 (Semi-Pneumatic) Drive 18 x 6.50-8 (4-Ply) Drive (Optional Wide Tire) 18 x 8.50-8 (4-Ply) Rear 13 x 6.50-6 (4-Ply)

TIRE PRESSURE

Deck Caster Wheel 20 PSI (137 kPa) Drive 15 PSI (103 kPa)

Rear

DIMENSIONS (Tractor and Mower) Length

36 in. (91 cm) GHS Model 87 in. (221 cm) 42 in. (107 cm) GHS Model 89 in. (226 cm)

Width

36 in. (91 cm) SD Model (with Deflector)

42 in. (107 cm) SD Model (with Deflector)

36 in. (91 cm) GHS Model 37 in. (94 cm) 42 in. (107 cm) GHS Model 43 in. (109 cm)

2900 RPM

[16700 FPM (5090 m/min)]

20 PSI (137 kPa)

41-3/4 in. (106 cm)

47-3/4 in. (121 cm)

Specifications

MODEL MS

DIMENSIONS (continued) Height

SD Model 37-1/2 in. (95 cm) GHS Model 44-1/2 in. (112 cm) Wheel Base (Tractor) 42-1/4 in. (107 cm) Tread Width (Tractor)

Standard Ti res 28-1/4 in. (72 cm) Optional Tires 29-3/4 in. (76 cm)

MOWER DECK

Width of Cut SD/GHS 36 or 42 in. (91 or 107 cm) Cutting Height 1 to 4 in. (3 to 10 cm) Height Adjustment 7 Positions - 1/2 in. (1 cm) Increment Hitch Pins Installed in

Blade Size

36 in. (91 cm) SD Model 20 in. (51 cm) Two (2) Clockwise-Rotating Blades with a 4 in.

36 in. (91 cm) GHS Model 20 in. (51 cm) Two (2) Counter-Rotating Blades with a 4 in.

42 in. (107 cm) SD Model 22 in. (56 cm) Two (2) Clockwise-Rotating Blades with a 2 in.

42 in. (107 cm) GHS Model 22 in. (56 cm) Two (2) Counter-Rotating Blades with a 2 in.

Deck Suspension Torsion-Flex Frame with Caster Wheels and

Multi-Position Deck Support

(10 cm) Center Overlap

(5 cm) Center Overlap

Counterweight Springs

CURB WEIGHT (Approximate)

SD Tractor Only 490 lb (224 kg) GHS Tractor Only 565 lb (256 kg) SD Tractor and 36 in. SD Deck 635 lb (288 kg) SD Tractor and 42 in. SD Deck 670 lb (304 kg) GHS Tractor and 36 in. GHS Deck 715 lb (324 kg) GHS Tractor and 42 in. GHS Deck 735 lb (340 kg)

DRIVE BELTS

Engine PTO Walker P/N 5230-2

Gates BX30 Ground Drive Walker P/N 5232

Gates 6847 PTO Drive

SD Model PTO Drive

GHS Drive

Walker P/N 5234-1

Gates 6935

Walker P/N 5234-2

Gates 6944

Specifications

MODEL MS

GHS SYSTEM (Optional)

Blower 3 1/2 x 9 x 1/4 in. (9 x 23 x 1 cm) Three-Blade Paddle Wheel

Blower Brake Belt Scrubber Brake (Works in Combination with PTO Clutch,

Max. Blower Speed 3600 RPM Grass Catcher Capacity 63 Gallons (238 liters)/6.7 Bushels Full Signal Oscillating Vane Switch Mounted on Grass Delivery Spout Triggers

Powerfil

(Driven by Mower Engine)

Stops Blower within Five (5) Seconds of PTO Disengagement)

Horn Signal

Oscillating Delivery Spout Driven by 12 Volt Electric Gearmotor

Spreads Material throughout Interior of Catcher @ 25 Cycles/Minute

SEAT

FRAME/BODY CONSTRUCTION

Frame All Welded Unitized Steel Chassis Body 14 Gauge Steel Deck 11 Gauge Steel GHS Catcher and Chutes Molded Cross-Linked Polyethylene (UV Stabilized)

Contour-Molded, with Nylon Backed Vinyl Cover and Integral

Foam Cushion

NOTE: The manufacturer reserves the right to make changes in specifications shown herein at any time without notice or obligation.

Component Identification

Grass Handling System

6.7 Bushel Catcher

Catcher Door

Safety Latch

Anti-Scuff

Roller

Catcher Lift/

Dump Handle

Counterweight

Spring and

Protective Cover

NOTE: Control Identification

shown in Operating Instructions section.

Tilt-Up Latch

Transmission Control Rod

Adjustment Nut (LH)

Deck Support Pin

and Height Adjustment

Hitch Pins

Tilt-Up

Deck Handle

Tran smission Control Rod

Adjustment Nut (RH)

Deck Lift Handle

(Cutting Height Adjustment)

Deck Support Arms

Front View and Right Side View

Tilt-Up

Hook

Footrest

Caster Wheels

Footrest

Deck

Component Identification

Catcher Door

Gas Spring

Protective Cover

Catcher Lift/

Dump Handle

Catcher Door

Gas Spring

Removable Grass

Catcher Screen

(Not Visible)

Catcher Exhaust

Deflector

Catcher Door

Left Hand

Drive Wheel

Oil Filter

Fuel Filter

Fuel Shut-off

Valve

Rotating Engine

Screen

Catcher Door

Handle

Anti-Scuff

Rollers

Tailwheel Fork

and Wheel

Rear View and Left Side View

Component Identification

Rubber Bumper

Body Support

Fuel Tank

Cap

Starter Solenoid

(Not Shown)

Air Cleaner

Dust Cup

Air Cleaner

Air Restriction

Indicator

Air Intake Hose

Carburetor

Fuel Level

Indicator Muffler

Tractor PTO

Gearbox

RH Transmission

Lockout Lever

RH Hydrostatic

Transmission

Positive (+)

Battery Cable

Negative (-)

Battery Cable

Battery

Top View (Body Raised)

Neutral Safety

Switch

GHS Blower

LH Hydrostatic

Transmission

LH Transmission

Lockout Lever

Safety Instructions

Pay particular attentio n to any information labeled

DANGER, WARNING, CAUTION, IMPORTANT,

and NOTE in this manual. When you see the Safety Alert Symbol ( ),

read, understand, and follow the instr uctions. Failure to comply with safety instructions may result in personal injury.

The seriousness or degree of imp ortance of each type of information is defined as follows:

DANGER

An IMMEDIATE hazard that WILL result in severe personal injury or DEATH, if warning is ignored and proper safety precautions are not taken.

WARNING

A POTENTIAL hazard that COULD result in severe personal injury or DEATH, if warning is ignored and proper safety precautions are not taken.

Walker Manufacturing cannot pred ict every potentially dangerous situat ion . The re fore, i tem s labeled as such in th is m anu al do n ot cover all co nc eivable situations. Any pe rson using procedure s, tools, or control techniques not recommended by Walker Manufacturing must take full responsibility for safety.

The Walker Rider Lawnmower has been designed with many safety features to protect the operator from personal harm or injury. However , it is necessary for the operator to use safe o perat i ng procedu res a t all times. Failure to follow safety instructions

contained in this manual may result in personal injury or damage to equipment or property.

If you have any questions concerning setup, operation, maintenance, or safety, please contact your authorized Walker Mower Dealer or call Walker Manufacturing Company at (970) 221-5614.

BEFORE OPERATING

1. Read and understand the contents of this

Owner’s Manual before starting and operating the machine. Become thoroughly familiar

with all machine controls and how to stop the machine and disengage the controls quickly. Replacement Owner’s Manuals are available by sending the Model and Serial Number to:

CAUTION

Possible hazards or unsafe practices that MAY result in MODERATE personal injury or property damage, or machine damage, if warning is ignored and proper safety precautions are not taken.

IMPORTANT: Identifies mechanical information

demanding special a ttentio n, since i t deals with th e possibility of damaging a part or parts of the machine.

NOTE: Identifies information worthy of special attention.

Walker Manufacturing Company

5925 East Harmony Road

Fort Collins, CO 80528

2. Never allow child ren t o oper ate ri der mo wer . Do not allow adults to operate without pr oper instruction.

3. Clear the area to be mowed of any foreign objects which may be picked up and thrown by cutter blades. Pick up all sticks, stones, wire, and any other debris.

4. Keep everyone, especi all y child re n an d pets, a safe distance away from the area being mowed.

Do not mow with bystanders in the area.

5. Do not operate the machine barefoot or wearing sandals, sneakers, tennis shoes, or similar lightweight footwear. Wear substantial protective

footwear.

Safety Instructions

6. Do not wear loose fitting clothing that could get caught in moving parts. Do not operate this machine while wearing shorts; always wear adequate protective clothing, including long pants. Wearing safety glasses, safety shoes, and a helmet is advisable and required by some local ordinances and insurance regulations.

7. Prolonged exposure to loud noise can cause impairment or loss of he ar ing . Operator hear- ing protection is recommended; particularly for continuous operation of the GHS Model due to blower noise level. Wear a suitabl e hearing protective device, such as earmuffs or earplugs.

8. Keep all protective shields and safety de- vices in place. If a protective shield, safety device, or decal is damaged, unusable, or missing, repair or replace it before operating the machine.

9. Be sure interlock switches are functioning correctly, so th e engine cannot be starte d unless the Forward Speed Control lever is in the NEUTRAL-PARK position, and the PTO clutch is in the DISENGAGED position. Also, the engine should stop if the operator lifts off the seat with the PTO clutch in the ENGAGED position.

10. Handle gasoline with car e. Gasoline is highly flammable and its vapors are explosive :

a. Use an approved fuel container. b. Never add fuel to a run ning engine or ho t

engine (allow hot engine to cool several minutes).

c. Keep matches, cigarettes, cigars, pipes,

open flames, or sparks away from the fuel tank and fuel container.

d. Always fill the fuel tank outdoors using care.

Fill to about one inch from the top of the tank. Use a funnel or spout to prevent spilling.

e. Replace the machine fuel cap and container

cap securely a nd clean up any s pilled fuel before starting the engine.

11. Never attempt to make any adjustments while the engine is running, except where specifically instructed to do so.

12. The elec trical system battery contains sulfuric acid. Avoid any contact with skin, eyes, and clothing. Keep the battery and acid out of reach of children.

OPERATING

1. Operate th e mower only i n daylight or in good artificial light with good visibility of the area being mowed.

2. Sit on the seat when starting the engine and operating the machine. Keep feet on the deck footrests at all times when the tractor is moving and/or mower blades are operating.

3. For a beginning operator, learn to steer

(maneuver) the tractor with a slow engine speed before attempting any mowing operation. Be aware that, with the front mounted

mower configuration, the back of the tractor swings to the outside during turns.

4. Remember, for an emergency stop, the forward motion of th e tractor can always be stopped by pulling the Forwar d Speed Control (F SC) into the NEUTRAL-PARK position.

5. In case either of the transmission drive belts break during operation, and if the machine is on a slope, the machine will f reewheel down the slope. To maintain control, immediately (1) Release the steering levers and simultaneously (2) Move the FSC to the NEUTRAL-PARK position. When the machine is sto pped or moving slowly, engage the parking brake.

NOTE: This is exac tly th e same proced ure us ed to normally stop and park the machine.

6. Disengage the blade clutch and put the FSC in the NEUTRAL-PARK position before starting the engine (an ignition interlock switch normally prevents starting of the machine if these controls are in the OPERATING position).

7. Do not run the engine in a confined area without adequate ventilation. Exhaust fumes are hazardous and can be deadly.

8. Do not carry passengers - maximum seati ng capacity is one (1) person.

Safety Instructions

9. Watch for holes, rocks, and roots in the terrain and for other hidde n hazards. W hen mowing tall grass, mow hig her than desired to e xpose any hidden obstacles. Then, clean the area and mow to the desired height.

10. Avoid sudden start s or stops. Bef ore backing the machine up, look to th e rear to b e sure n o one is behind the machine. Watch carefully for traffic when crossing or working near roadways.

11. Disengage the blade drive when transporting the machine across drives, sidewalks, etc. Never

raise the mower deck while blades are rotating.

12. The maximum recommended side slope operating angle is 20 degrees or 33% grade.

When operating the machine on a slope, reduce speed and use caution to start, stop, and maneuver. To prevent tipping or loss of control of the machine, avoid sharp turns or sudden changes in direction.

13. Never adjust cutti ng height with the engine running. Before adjusting cutting height or servicing, disengage the blade clutch (PTO), stop the engine, and remov e the ignition key. Wait for all movement to stop before getting off the seat.

NOTE: A blade/blower br ake should nor mally stop drive line rotation within five (5) seconds of disengaging the PTO clutch.

17. For GHS equipped models, use care when closing the grass catcher door . Keep fingers and hands away from the hinge and pinch points when the door is be ing closed. Also, k eep fingers and hands clear of the do or frame. The door is held closed with s prings and the door may slam shut with considerable force.

18. In case of a clogged or plugged mower deck

or GHS catching system:

a. Disengage the blade clutch (PTO) and turn

the engine off before leaving the seat.

b. LOOK to make sure blade drive sh aft and

blower drive pulley movement has stopped

before trying to unclog the system. c. Disconnect the spark plug wire. d. Never place hands under the deck or in the

GHS blower - use a stick or similar tool to re-

move clogged material.

19. If the cutting bl ades strike a solid object o r the machine begins to vibrate abnormally, immedi-

ately disengage the blade clutch (PTO), stop the engine, and wait for all moving parts to stop. To pr event accidental starting, discon-

nect the spark plug wire. Thoroughly inspect the mower and repair any damage before restarting the engine and operating the mower. Make sure cutter blades are in good condition and blade nuts are torqued to 60 ft-lb (81.3 N

⋅m).

14. For side discharge mower decks, do not oper-

ate with the grass deflector chut e removed .

Keep the deflector in the lowest possible position.

15. For tractors equipped with tilt-up deck, observe

the following recommendations:

a. Do not move tractor with deck in tilt-up po-

sition.

b. Never tilt body forward with deck in tilt-up

position.

16. For GHS equipped models, do not operate the

machine with the grass catcher in the DUMP position or with the back door OPEN. Dan-

gerous projectiles may be thrown out of the discharge chute or the back of the grass catcher.

20. Do not touch the engine or muffler while the engine is running or immediately after stopping the engine. These areas may be hot enough to cause serious burns.

21. When leaving the machine unattended, dis-

engage the blade clutch (PTO), stop the engine, and remove the key.

MAINTENANCE

1. To prevent accidental starting of the engine when servicing or adjusting the machine, remove the key fro m the ignition sw itch and disconnect the spark plug wire.

2. To reduce fire hazards, keep the engine free of grass, leaves, excessive grease, and dirt.

Safety Instructions

3. Keep all nuts, bolts, and sc rews tig ht to ensure the machine is in a safe, working condition. Check the blade mounting nuts frequently , making sure they are tight.

4. Perform only maintenance instructions de- scribed in this manual. Unauthorized maintenance operations or machine modifications may result in unsafe operating conditions.

5. If the engine must be running to perform a maintenance adjustment, keep hands, feet, and clothing away from moving parts. Do not wear

jewelry or loose clothing.

6. Always use the proper engine service manual when working on the engine.

Unauthorized maintenance operations or modifications to the engine may result in unsafe operating conditions.

7. Altering the equipment or engine in any manner which adversely affects its operation, performance, durability, or use will VOID the warranty and may cause hazardous conditions.

c. Keep sparks, fla mes, a nd smo king mater i-

als away from the ba ttery at all times. To avoid sparks, use care when removing battery cables from posts.

d. Disconnect both battery cables before un-

plugging any wiring conne ctors or making repairs on the electrical system.

IMPORTANT: Keep all applicable manuals immediately accessible to anyone who may operate or service this machine.

8. Never attempt t o disc onnect any sa fety devices or defeat the purpose of these safety devices.

9. Do not change the engine g overnor setti ngs or overspeed the engine. The governor has been factory-set for m axim um- s afe engi ne ope rating speed.

10. Use genuine factory replacement part s. Substitute parts may result in product malfunction and possible injury to the operator and/or others.

11. Use care when charging the batter y or per- forming maintenance on the battery and electrical system:

a. Make sure the battery charger is unplugged

before connecting or disconn ecting cables to the battery.

b. Charge the battery in a well-ventilated

space, so gases pro duced while charging can dissipate. Make sure the battery vents in the caps are open.

Safety Instructions

SAFETY, CONTROL, AND INSTRUCTION DECALS

Safety, Control, and Instruction Decals are installed on the machine;

if any are missing, illegible, or damaged, a replacement should be ordered and installed before

putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual.

Underside of Body (5861)

T op Rear of Fuel T a nk (5855)

Top of Blower Housing (5819)

Top of Fuel Tank (6810)

Rear Bumper (5815)

Gear Axle (5810-1)

Deck Carrier Frame (5865)

Catcher Door Hinge Bar, LH and RH Sides (5868)

Hydrostat Oil

Reservoir (5810-2)

Right Side, Below Operator Seat (7809)

Deck Gearbox Cover (5807-3)

On Body Adjacent to Clutch

Control Lever (5806)

Safety Instructions

SAFETY, CONTROL, AND INSTRUCTION DECALS

Safety, Control, and Instruction Decals are installed on the machine;

if any are missing, illegible, or damaged, a replacement should be ordered and installed before

putting the machine into operation. The Decal Part Number is listed below and in the Parts Manual.

Each End of Mower Deck (5808)

SD Deck Discharge Shield (5848)

Adjacent to Blower Discharge Chute

Through Body (5804)

Fender, RH Side (5802-1)Fender, LH Side (580 2-2)

Assembly Instructions

SETUP INSTRUCTIONS

Walker Mowers are shipped partially assembled. After uncrating the tractor and mower deck, initial setup is required.

NOTE: During the process of unpacking, any damaged or missing parts should be noted and reported to the delivering ca rrier immediately (put in wri ting within 15 days). The carrier will provide directions for proceeding with a claim to receive compensation for damage.

Tire Installation (Tractor)

• Install the drive ti res usin g the eig ht (8) lug bo lts

that are supplied with the owner’s packet of materials. Drive tires are 18 x 6.50-8, 4-ply; rear tire is 13 x 6.506, 4-ply.

• Check and adjust the inflation of the tires. The tire

inflation recommendations are:

Drive = 15 PSI (103 kPa) Rear = 20 PSI (137 kPa)

Dry Battery Servic e

DANGER

Activating a battery can be dangerous. The battery should be taken to a reliable service station, battery store, or power equipment dealer where a trained technician can activate the b attery safely. DO NOT attempt to activate the battery unless you are experienced in battery service work. The following activation and charging instructions are provided for use by a trained battery technician.

DANGER

Battery electrolyte is a poisonous and corrosive sulfuric acid solution.

• Avoid spillage and contact with skin,

eyes, and clothing - causes severe burns.

Battery Service

Tilt mower body up (lift on rear of body ) for battery access. Check the bat tery for electr olyte level an d charge. The electrolyte level should be at the bottom of the vent wells [1/4 to 1/2 in. (6 to 13 mm) ab ove plates]. If the specific gravity is less than 1.225, the battery needs charging. If the battery has been shipped dry, or is wet but needs service, refer to the following instructions.

IMPORTANT: Make sure battery is securely mounted in the frame. A loose battery may cause damage to the case resulting in acid leakage and severe damage to the machine. A hazard may be created by damage to cr itical work ing parts and sa fety systems.

Wet Battery Service

If the battery has been shipped wet, but the electrolyte level is low or the batte ry needs to be charge d then:

1. Fill each battery cell with drinking water to th e bottom of the vent wells.

2. Charge battery. Refer to Battery Charging in this section.

• To prevent accidents, wear safety gog-

gles and rubber gloves when working with electrolyte.

• Neutralize acid spills with baking soda

and water solution.

T o fill (activate) battery with electrolyte (if battery has been shipped dry):

1. Remove the battery hold dow n bar, disconnect the battery cables and li ft the battery ou t of the tray.

IMPORTANT: Battery must be removed from the mower before filling with electrolyte.

IMPORTANT: Obtain and use only battery grade sulfuric acid electrolyte with a 1.265 specific gravity to activate the battery. DO NOT use water or any other liquid during initial activation.

2. Remove the filler caps and carefully fill each cell until the electrolyte is just above the plates.

3. After the battery is filled with electrolyte, replace the filler caps and cha rge the batt ery. Refer to Battery Charging.

Assembly Instructions

Battery Charging

DANGER

BATTERIES PRODUCE EXPLOSIVE GASES

• Charge the battery in a well-ventilated

area, so that gases produced while charging can dissipate.

• Keep sparks, flames, and smoking mate-

rials away from the battery at all times.

Battery Clamp

Secured by

Wing Nuts

(+) Battery Cable

Connection

RH Drive Wheel

• Make sure the battery cap vents are open

after the battery is filled with acid (check manifold vent on each cap).

• Make sure the battery charger is unplug-

ged before connecting or disconnecting cables to the battery.

1. Charge the battery at 15 amps for 10 minutes. DO NOT exceed 20 amps maximum recommended charging rate. Charge until specific gravity is at least 1.250. Total charging time should not exceed one (1) hour.

2. After charging the battery, adjust the electrolyte level to the bottom of the vent wells [1/4 to 1/2 in. (6 to 13 mm) above the plates].

IMPORTANT: DO NOT overfill the battery. Electrolyte will overflow through the vented caps onto parts of the machine and WILL result in severe corrosion.

3. Install battery.

Battery Installation

Mower Deck Assembly

Deck Caster Wheels Installation

1. Remove the bolt, nut, axle spacer tube, and spacer washers from each deck caster wheel fork.

NOTE: Spacer washers are used only when the optional semi-pneumatic deck wheels (8.25 x 2.75) are installed.

2. Fit the axle spacer tube through the wheel hub, position the spacer wa sh er on ea ch si de of the hub (if used), and fit the assembly into the wheel fork.

3. Insert the 3/8-16 x 4-1/2 in. bolt through the wheel fork with the bolt head to the outside and install the 3/8-16 in. Keps nut.

4. Tighten the bolt and nut until the axle spacer tube bottoms against the inside of the wheel fork (will not turn) while the wheel and spacer washers (if used) spin freely without binding.

IMPORTANT: Make sure battery is securely mounted in the frame. A loose battery may cause damage to the case resu lting in acid leakage and severe damage to the machine. A hazard may b e created by damage to critical working parts and safety systems.

Install the battery in the mower as shown in Battery Installation photo. Connect the positive and negative cables to the proper battery terminal [red cable

and boot connects to the positive (+) terminal].

Slide the rubber boot up and over the ba ttery post, making sure it co vers the post complet ely to prevent

an electrical short.

Assembly Instructions

Grease Fitting

Locations

Spacer Washer

Axle Spacer Tube

Deck Caster Wheel Installation

NOTE: If semi-pneumatic wheels are installed,

make sure the spacer washers fit over the spacer tube and are not caught between the fork and the end of the tube. The washers should move freely on the axle spacer tube.

5. Grease the caster wheel bearings and caster pivot bearings - one grease fitting for each wheel and each pivot.

Deck Discharge Shield Installation (Side Discharge Models Only)

Attach the deck side discharge shield by positioning the shield hinge lug i n fr ont of the deck mou nt and fastening with two (2) 3/8-16 x 1-1/4 in. bolts, 3/8-16 ESNA nuts, and 3/8 in. wave sp ring washers. Th e wave washers fit between the two hinging surfaces. Tighten the nuts until the shield moves freel y but is not loose.

WARNING

DO NOT operate the machine without the grass deflector chute a ttached and in the lowest possible position.

Attach Shield

Deck Discharge Chute Installation (GHS Rear Discharge Models Only)

Mount the discharge chute hinge on top of the deck discharge openin g using the 1/4-20 x 1/2 i n. s oc ket button head bolt and 1/4-20 ESNA nut. Position the bolt with the head inside of the chute and the nut on the outside.

Carrier Frame

Tube Sockets

Attach Guard

Nut on Top

Discharge Chute and PTO Shaft Guard

Installation on Rear Discharge Deck

Attach

Chute

Discharge Shield Installation

on Side Discharge Deck

PTO Shaft Guard Installation

Position the shaft guard as shown and mount with two 1/4-20 x 1/2 in. bolts.

Tilt-Up Roller Wheel Installation

Mount the two (2) tilt-up roller wheels on the brackets on the rear skirt of the deck housing using the P/N 8490 axle b olt , 3 /8 in. wa ve s pr in g washer and 3/8-16 in. Whiz locknut. Tighten the axle bolt until the wheel rolls freely, but is not loose.

Assembly Instructions

Attach Spring

Roller Wheels

Tilt-Up Spring and Roller Wheel

Installation on Rear Discharge Deck

Mower Deck Installation on Tractor

Deck Installation

1. Lightly grease each deck support arm (2) on the tractor. Refer to Mower Deck Installation photo for location of deck support arm.

Grease Deck

Support Arms

PTO Connection

Arrows on Shaft and Tube

(used to align when sliding together)

Mower Deck Installation/PTO Shaft Connection

5. Install the hitch pin through the hole on the end of each support arm to lock the deck in place (refer to Deck Counterweight Spring Installation photo). Two (2) hitch pins are included in the owner’s packet of materials.

2. Engage the deck carrier frame tube sockets on the tractor support arms (refer to Discharge Chute and PTO Shaft Guard Installation photo for socket location). Slide the deck onto the support arms approximately 3 in. (76 mm).

3. Align and connect the splined PTO shaft and socket halves, as shown in Mower Deck Instal- lation photo. The PTO shaft has a pilot end t o ease alignment of shaft; fit shaft end into socket and rotate shaft until the splines line up as indicated by arrows, then slide together.

4. If the deck is rear discharge (GHS equipped model), the rear discharge chute will need to be aligned and connected to the blower inlet during the last 2 in. (51 mm) of slide action on the support arms.

NOTE: Raising the mower body may be helpful in fitting and guiding the deck chute into the blower.

Assembly Instructions

Spring Tension Adjustment Nut

Located Under Lower

Spring Hook (not visible)

Counterweight Springs

Clip Onto Body

With Body Tilted Up

Hitch Pins

Lock Deck On

Support Arms

Deck Counterweight Spring Installation

6. Raise mower body (instead of lifting the front of deck) and clip the co unte rweight springs to th e receptacle on front of body. Lower the body to tension the springs . (Refer to Deck Counter- weight Spring Installation photo.)

7. With the co unterweight s prings connected, th e weight on the deck caster wheels should be 15 to 25 Ib (6.8 to 11.3 kg). Check this weight by lifting on the front of the deck carrier frame. If required, the spring tension can be adjusted by tightening or loose ning th e elas tic sto p nuts located underneath the lower spring hook. Refer to Deck Counterweight Spring Installation photo.

Assembly Instructions

Deck Leveling

1. Position mower on a sm ooth, le vel surf ace. Set the cutting height to th e highest position - 4 in. (102 mm) - for easy acce ss under the deck to measure blade height. Refer to ADJUSTING

CUTTING HEIGHT in Operating Instructions. NOTE: A block of wood cut 4 in. (102 mm) high

is a convenient gauge to measure blade height above ground during the leveling process.

WARNING

The machine must be shut off during this procedure.

2. Check the side-to-side level. Rotate each blade sideways and measure the distance from blade

tip to ground on each side. If measurements vary more than 1/8 in. (3 mm), ad d a washer shim under the deck support pins on the low side to level the deck.

3. Check the front-to-rear level. Rot ate the blades to point forward. Me asure the distance from blade tip to ground on t he front and rear. The rear of the blade should be 1/8 to 1/4 in. (3 to 6 mm) higher than the front of the blade; shim the rear (or front) deck support pins equally to achieve at least 1/8 in. (3 mm) difference.

NOTE: The mower deck and support frame are jig welded; within normal toleran ces, very little, if any, shimming should be required to level the deck. Tire pressure will influence the levelness of the deck. Check the tire pressure as a possible cause of the deck not being level.

4 in. (102 mm)

Wood Block

Should not vary more

than 1/8 in. (3 mm)

side-to-side

Should be 1/8 in. (3 mm)

to 1/4 in. (6 mm) higher

at the rear of the blade

4 in. (102 mm)

Wood Block

Deck Leveling

Assembly Instructions

PREOPERATING CHECKLIST

Before operating the mower for the first time, and as a routine before da ily operations, it is important to make sure the mower is properly prepared and ready for operation. The following is a lis t of items to be checked. (For a mower with frequent operation, some of these items will not need to be checked every day, but the operator should be aware of the condition of each.)

For proper fuel and lubricants refer to Specifications.

FILL FUEL TANK

Raise the mower body and locate the fuel tank on top of the engine.

Fill the fuel tank using clean, fresh, automotive grade unleaded gasoline (87 octane rating minimum).

DANGER

Handle gasoline with care. Gasoline is highly flammable and its vapors are explosive. Use safe refueling procedures:

IMPORTANT: DO NOT mix oil with gasoline.

Always use fresh, autom otive grade unleaded g asoline. DO NOT use premium, white, or high-test gasoline. DO NOT use additives, such as carburetor cleaners, deicers, or moisture removing agents. DO NOT use gasoline blended with methyl alcohol.

CHECK ENGINE CRANKCASE OIL LEVEL

Check the en gine cran kcase oi l level bef ore use an d after each 5 hours of continuous oper at ion . Refe r to LUBRICATION for Checki ng Engine Cra nkcase Oil Level in Maintenance Instructions.

CHECK AND SERVICE ENGINE AIR CLEAN-

ER SYSTEM

• Check air restriction gauge to make sure there is

no red indication showing.

• Check condition, cleanliness, and security of the

complete air filter element (clean air filter every 100 hours). For detailed procedures, refer to CLEANING the Engine Air Cleaner System in Maintenance Instructions.

CHECK ENGINE COOLING SYSTEM

• DO NOT fill fuel tank with the engine run-

ning.

• If the engine is hot, allow to cool before

refueling.

• Use an approved fuel container.

• Fuel the mower outdoors.

• DO NOT smoke while refueling.

• Avoid spilling fuel; use a funnel or spout.

• DO NOT overfill the fuel tank; fill up to

about 1 in. (25 mm) below the top of tank.

IMPORTANT: DO NOT permit dirt or other foreign

matter to enter the fuel tank. Wipe dirt from around the filler cap before removing. Use a clean fuel storage container and funnel.

Check that the engine cooling air intake screen is free of obstruction by grass clippings or debris and clean if required. Also, cylinder head cooling fins should be inspected and cleane d if any build-up of debris is noted (remove cylinder head shroud to clean).

Check performance of the cooling system by starting the engine, holdi ng a hand adjacen t to the c ylinder head, and feeling the cooling airflow.

DANGER

Make sure to keep hands clear of exhaust pipe, muffler, and moving parts when checking airflow.

CHECK GEAR AXLE OIL LEVEL (if equipped)

Refer to Gear Axle Lubrication in Maintenance

Instructions.

Assembly Instructions

INSPECT THREE (3) DRIVE BELTS

Engine, PTO, and Hydrostatic Ground Drive.

CHECK HYDROSTATIC TRANSMISSION OIL

LEVEL

Refer to LUBRICATION for Checking Hydrostatic

Transmission Fluid Level in Maintenance Instructions.

CAUTION

Do not operate machine with deck tilt-up pivot joint unlocked.

DANGER

CHECK TIRE PRESSURE

Deck Caster Wheel = 20 PSI (137 kPa) Drive = 15 PSI (103 kPa)

Rear = 20 PSI (137 kPa)

CHECK AND CLEAN GRASS BUILDUP

UNDERNEATH MOWER DECK (and inside GHS blower, if equipped)

Refer to CLEANING the GHS Blower in Mainte- nance Instructions for blower cleaning information.

DANGER

Never operate cutter b lades with deck in raised position because it is hazardous.

The tilt-up deck can be secured in the raised position by unlocking the deck lock levers on each side of the carrier frame and inserting the deck hook into the tiltup latch on the tractor body. Before operating th e tractor, make sure to re-engage the deck lock levers after lowering the deck to the normal operating position.

Do not operate the mower with deck in tiltup position. Do not move t he tra ctor with the deck in the tilt-up position.

CHECK MOWER BLADE CONDITION, SHARP-

NESS, AND SECURITY OF MOUNTING

The blade mounting nut should be tightened to 60 ftlb (81.3 N to CHECKING/SERVICING for Sharpen Mower Blades in Maintenance Instructions.

ADJUST MOWER CUTTING HEIGHT, IF RE-

Position the hitch pins in the four deck support pins. Refer to the “Cutting Height Adjustment” decal on the deck gearbox cover.

PERFORM ANY ADDITIONAL PROCEDURES

CHECK DRIVE WHEEL BOLT TORQUE

The lug bolts mounting the drive tires should be tightened to 75 to 85 ft-lb.

⋅m). If blade sharpening is required, refer

QUIRED

called for on the MAINTENANCE SCHEDULE CHART in Maintenance Instructions.

Tilt-Up Latch

Deck Secured in Tilt-Up Position

Operating Instructions

CONTROL IDENTIFICATION, LOCATION, AND FUNCTION

CAUTION

Before operating the mower, become familiar with the location and function of all operator controls. Knowing the location, function, and operation of these controls is important for safe and efficient operation of the mower.

Ignition Switch

The ignition switch is located on the right front of the body and is used to s tart and s to p th e e ngi ne. T h e switch has three pos itions: “O ” is the OFF posit ion, RUN is the position the key returns to after starting, and “S” is the START position. When starting the engine, turn the key clockwise to the “S” position. Do not hold the key in the “S” position lo nger than 10 seconds. If the engine does not start, return the key

to the “O” position for at least 60 seconds before making a restart attempt. Pr olonged cranking can damage the starter motor and shorten battery life. Release the key when the engine starts, a nd it will return to the RUN position. To stop the engine, rotate the key counterclockwise to the “O” position.

Engine Choke

The choke control l ever (black knob) i s located on the left side of the seat. T o start a cold engine, move the choke control f orwar d to the ON posi tion. After engine starts, move ch oke control toward the OFF position, keeping enough choke to allow the engine to run smoothly as it warms up. As soon as possible, move the choke to the OFF position. A warm engine requires little or no choke for starting.

IMPORTANT: Make sure the choke is i n the OFF position during normal engine operation; running with the choke in the ON position CAN damage the engine.

Parking Brake

Blade Clutch

(PTO)

Forward Speed

Control (FSC)

Ignition Switch

Steering

Levers

OFF

Ignition Switch

Key Positions

Hourmeter

START

Operating Controls

Operating Instructions

Engine Throttle

The throttle control lever (red knob) is located on the left side of the sea t and is used to control engin e speed. Moving the leve r forward toward the FAST position increases engine speed; moving it back- ward toward the IDLE position decreases engine speed.

Throttle Choke

Choke and Throttle Location

Forward Speed Control (FSC)

Forward Speed Control (FSC) has two functions: One is to set forward travel speed, and the othe r is to establish the NEUTRAL-PARK position. When the FSC lever is moved into the FORWARD position, a friction lock holds an y fo rward spe ed setti ng from 0 to 5 mph (0 to 8 km/h). The ground speed is proportional to the lever position; the further the lever is advanced forward, the faster the tractor moves. It is not necessary to hold the FSC in position since the friction lock maintains the selected lever position. Pulling back on the steering levers overrides the FSC setting and slows or stops forward travel. Releasing the steeri ng levers allows the tractor to resume forward travel at the spee d set by the FS C lever. To stop and park the machine, the FSC lever is moved backward to the NEUTRAL-PARK position.

Steering Levers

Each drive wheel is controlled by its own inde pendent steering lever, for both steering function and FORWARD/REVERSE motion. The FSC lever sets the maximum forward speed , and als o sets the for ward position of the steer ing levers. The steering levers operate only with a backward pulling movement of the lever, which causes the drive wheel for that lever to first s lo w dow n, s top, and then reverse with a full backward lever stroke. The levers are released to the FORWARD position for “straightahead” ground travel.

NOTE: Pushing forward on the steering levers will not cause any change in tractor motion - there will be no steering lever reaction and there will be no machine damage.

Blade Clutch (PTO)

The blade clutch lever is located on the right side of the seat behind the right fender and is used to engage and disengage the mower blades. The blade clutch has two positions. Pus hin g the l ev er BACK- WARD engages the PTO that drives the mower blades. Pulling the le ver FORWARD disengages the PTO and engages the blade brake.

NOTE: On GHS equipped mo dels, the Powerfil motor and Grass-Pak full signal switch are activated by engaging the blade clutch. Refer to Using the GHS Catcher in this section for a complete description of GHS operation.

Parking Brake

The parki ng brake f unction s by locki ng a pin into the hydrostatic transmission pi nion gear teeth. Movi ng the lever FORWARD engages the parking brake; moving the lever BACKWARD releases the brake.

IMPORTANT: Stop the tractor completely before engaging the parking brake. The parking brake uses a positive mechanical lock similar to the PARK position on an automotive automatic transmission. If the tractor is moving when the brake is engaged, it wil l result in sudden stoppage and possible internal damage to the axle drive.



NOTE: If pressure on the parkin g brake pin (e.g. parked on a hill) makes it i mposs ible to releas e the parking brake with the parking brake lever, move the mower gently forward or backward to release the pin.

Operating Instructions

Transmission Lockout Levers

The transmission lockout levers disengage the hydrost atic trans missons. By lif ting the lever on top of the transmission and locking it into place with the lockout cam, the hydrostatic transmissions are released to per mit freewheeling. By releasing the cam and lowering the lever, the transmissions are engaged for normal operation. The transmission lever in the LOCKOUT position is used to enable moving the machine without the engine running (e.g., for service). Refer to TRANSMISSION LOCK-

OUT in this section for operating instructions. NOTE: The transmission plunger on the side of the

transmission case (activated by the LOCKOUT LEVER) must be completely released during opera-

tion of the mower, otherwise operation of the transmission will be erratic.

Lockout

Levers

Procedure Interval* Reminder

Oil Change (Break-In)**

Lubricate and Check Levels

Oil Change

4-6 Hours

24-26 Hours LUBE

49-51 Hours***

OIL

H G

OIL

H G

* These intervals refle ct the actual time th at the

reminder will flash (one hour prio r to and one hour after the recommended interval).

** This reminder is only used one time. *** In norma l operating conditions, oi l changes in

100-hour intervals ar e ac ce ptable. Walker and the engine manufac turers recommend engine oil changes eve ry 50 hour s in extremely dirty or dusty condition s or for units with less than 100 hours annual use.

NOTE: The blinking hour glass on the display means that the meter is operating properly.

Transmission

Plunger

Lockout Lever Location

Hourmeter

The hourmeter, which is located on the left front of the body, displays operating time accumulated while the ignition switch is in the ON position.

The hourmeter provides maintenance reminders after certain hours of operation. The hourmeter screen will start flashing the reminder one hour prior to the recommended in terval and w ill conti nue until one hour after the recommended interval (two hours). The hourmeter does not have a manual

reset function.

Hourmeter

Light Switch (For Optional Lights)

Operates headlights (when installed).

Operating Instructions

The Forward Speed Control also Establishes the Neutral-Park Position of the Steering Levers

LEFT WHEEL

STEERING LEVER

Forward Position

(No Control Change)

Neutral-Park

Position

Reverse Drive

Wheel Motion

Position

RIGHT WHEEL

STEERING LEVER

FORWARD SPEED

CONTROL LEVER (FSC)

Full Forward

Ground Speed

Position

Intermediate

Ground Speed

Position

Neutral-Park

Position

Engaged

PARKING

BRAKE

Position

THROTTLE

ON Position

OFF Position

Fast

Throttle

Position

Idle

Position

BLADE CLUTCH

CHOKE

Operating Controls (Top View from Drivers Point of View)

Disengaged

Position

(PTO)

Disengaged

Position

Engaged

Position

Operating Instructions

STARTING THE ENGINE

CAUTION

Before operating the mower, read and understand all Safety Instructions and Operat- ing Instructions.

WARNING

NEVER run the engine in an enclosed or poorly ventilated area. Engine exhaust contains carbon monoxide, an odorless and deadly gas.

1. Before attempting to start the engine, make sure the operator is in the seat, the Forward Speed Control is in NEUTRAL-PARK position, and the blade clutch and parking brake are

DISENGAGED. NOTE: Release parking brake to prevent extra

load on the starter if the transmission neutral is slightly out of adjustment.

CAUTION

A safety interlock switch system PREVENTS CRANKING the engine with either the Forward Speed Control or the blade clutch (PTO) out of neutral. If the engine cranks otherwise, the safety system is not working and should be repaired or adjusted before operating the mower. DO NOT disconnect safety switches; they are for the operator’s protection.

IMPORTANT: DO N O T c r ank t he engine con-

tinuously for more than 10 seconds at a time. If the engine does not start, tur n the key to the OFF position and allow a 60 second cool-down period between starting attempts. Failure to follow these guidelines can damage the starter motor and shorten battery life.

3. After the engine starts, gradually move the choke to the OFF position, keeping enough choke on to allow the engine to run smoothly as it warms up. As soon as possible, move the choke to the OFF position.

IMPORTANT: Make sure the choke is in the OFF position during normal engine operation;

running with the choke in the ON position CAN damage the engine.

ADJUSTING GROUND SPEED AND STEERING

CAUTION

Learn to START, STOP, and MANEUVER the mower in a large, open area.

If the operator has not operated a machine with LEVER STEERING OR DUAL HYDROSTATIC TRANSMISSIONS, steering and ground operation should be learned and practiced until the operator is completely comfortable handling the machine BEFORE ATTEMPTING TO MOW.

DANGER

Keep feet on footrest at all times when the machine is moving.

2. Move the choke lever to the ON position and move the throttle 1/4 to 1/2 open (toward FAST). Turn the ignition switch to the START position to start the engine. Release the key to RUN position as soon as the engine starts.

NOTE: The choke may not be required if the engine is warm.

Operating Instructions

Beginning Recommendations are:

♦ Learn operation of the mower in an open

area away from buildings, fences, and obstructions. Learn operation on flat ground BEFORE operating on slopes.

♦ Start maneuvering the mower with SL OW

engine speed and SLOW Forward Speed Control setting until familiar with all operating characteristics.

♦ Remember it is not necessary to hold the

steering levers forward (a unique Walker feature); always PULL on the levers for steering or for reverse motion of the mower.

♦ Learn to operate the mower with your left

hand on the steering levers and right hand on Forward Speed Control. The use of two hands on the steering levers tends to cause overcontrol.

♦ Learn to operate the steering levers with

smooth action. Jerky movements are hard on the transmission and lawn. For sharp turns, do not allow th e insid e whee l to stop and twist on the grass . Pull the steer ing lever controlling the inside wheel into reverse for a smooth “rolling” turn (one wheel rolling forward while the other rolls backward).

♦ Practice maneuvering the mower until

you can make it go exactly wh ere you are aiming.

♦ Remember, for an emergency stop, or in

case of loss of control, mach ine movement can always be stopped quickly by pulling the Forward Speed Control into the NEUTRAL-PARK position.

WARNING

In case either of the transmission drive belts break during operation, and if the machine is on a slope, the machine will freewheel down the slope. To maintain control, immediately (1) Release the steering levers and simultaneously (2) Move the FSC to the NEUTRAL-PARK position. When the machine is stopped or moving slowly, engage the parking brake.

NOTE: This is exactly the same procedure

used to normally stop and park the machine.

1. Move the FSC out of NEUTRAL-PARK position to the desired forward speed. DO NOT hold forward on steering levers. It is not necessary to hold the FSC lev er in position since a friction lock maintains the selected lever position (and forward travel speed).

NOTE: If the FSC lever will not stay in the selected position, the friction lock needs to be adjusted. Contact your Walker Dealer.

2. S teer by pulling the lever on the side of desired direction of turn, e.g., p ull the LH lever to turn left. To minimize the possibility of overcontrol, use only one hand on both steering levers.

Pull Steering

Levers with

Left Hand

Forward Speed Control

(FSC)

Keep Feet on Footrest

when Moving

Correct Operator Hand Position on the Controls

3. Reverse direction of the mower by pulli ng both levers backward.

Operating Instructions

NOTE: Smooth action on the steering levers will produce smooth mower operation. Remember to keep the engine and ground speed slow until learning the control response.

4. The FSC may be adjusted forward for faster ground speed and bac kw ard for s lower ground speed. When mowing, ground speed should be adjusted to match the load on the cutter blades, i.e., as the eng ine pull s down i n heavy cutting , pull back on the FSC lever to reduce ground speed. Adjusting ground speed helps maintain a balance between engine power and blade speed for high-quality cutting action.

5. Stop ground travel by pulling both steering levers backward to the NEUTRAL-PARK position (tractor not movi ng) and then moving the FSC lever to the NEUTRAL-PARK position.

NOTE: If the tractor creeps forward or backward with the FS C lever in the NEUTRAL-PARK position, the transmission control needs to be adjusted. Contact your Walker Dealer.

ENGAGING THE MOWER

IMPORTANT: DO NOT engage the blade clutch

when transporting t he mower across drives, sidewalks, loose materials, etc. DO NOT engage the

blade clutch with the PTO shaft disconnected

(the mower deck removed from tractor).

Engaged

Position

Blade Clutch Engaged

Disengaged

Position

1. Set the engine throttle at about 1/2 speed. DO

NOT attempt to engage the blade clutch at high engine speeds. This will drastically short-

en drive belt life. Use only moderate engine speed when engaging the blade clutch.

2. Push the blade clutch lever SLOWLY back to engage the mower blades.

CAUTION

A safety interlock switch (seat switch) will cause the engine to stop if the blade clutch is engaged and the operator is not in the seat. The function of this switch should be checked by the operator raising off the seat and engaging the blade clutch; the engine should stop. If the switch is not working, it should be repaired or replaced before operating the mower. DO NOT disconnect the safety switches; they are for th e operato r’s protection.

Blade Clutch Disengaged

CAUTION

If the cutting blades strike a stationary object while mowing, stop the mower immediately , disconnect the sp ark plug wire, lift the deck, and inspect the deck and blades thoroughly for damage. Make sure that the blade timing has not been disturbed (the blades should be at 90 degrees to each other). Refer to REPLACING/REPAIRING the Blade Overload Shear Bolts in Maintenanc e Instructions if blades are out of time. Also, make sure the blade retaining nuts are torqued to 6 0 ft-lb (81.3 N

⋅m).

Operating Instructions

STOPPING THE MACHINE

1. Slow the engine to idle; pu t the throttle in the IDLE position.

2. Pull the steering levers to the NEUTRAL-PARK position and then move the FSC lever backward to the NEUTRAL-PARK position.

3. Disengage the blade clutch. IMPORTANT: DO NOT disengage the blade

clutch with high engine speed (above 1/2 throttle) since the brake act ion on the blade drive will cause premature wear of the PT O Drive Belt.

WARNING

A brake stops the cutter blades (and blower on GHS equipped models) from freewheeling within five (5) seconds after disengaging the clutch. If the brake system malfunctions and the blades do not stop within five (5) seconds, the brake should be adjusted or repaired before operating the mower . Contact your Walker Dealer.

ADJUSTING CUTTING HEIGHT

WARNING

The engine must be stopped before adjusting cutting height. Disengage the blade clutch (PTO), stop the engine, and remove the ignition key. Wait for all movement to stop before getting off the seat.

Cutting height is adjusted by positioning the four retainer hitch pins in a series of seven vertical holes on the deck support pins. Lift handles hav e been provided on each end of the deck to assist in raising the deck while positioning the hitch pins. Cutting heights range from 1 in. (25 mm) [top hole s] to 4 in. (102 mm) [bottom holes] in 1/2 in. (13 mm) increments.

Lift Handle

4. Turn the ignition switch OFF.

WARNING

Remove the key from the ignition switch when leaving the mower unattended. This will prevent children and inexperienced operators from starting the engine.

5. Engage the parking brake. IMPORTANT: The hydrostatic transmissions

lock to prevent the mower from rolling freely with the engine stopped. However , if the mower is parked on a slope, it is necessary to ENGAGE the parking BRAKE to prevent the mower from creeping. This is due to a small amount of slippage in the hydrostatic transmissions, especially when transmission fluid is warm.

Deck Support Pin

Hitch Pin

Cutting Height Adjustment

Operating Instructions

TRANSMISSION LOCKOUT IMPORTANT: DO NOT TOW this mower with the

transmission lockout engaged. Towing can produce excessive internal pressure and damage the transmission.

To mo ve the mower with the engine NOT running (dead battery, maintenance, etc.), the hydrostatic transmissions are unlocked (released).

1. Raise the body.

2. Lift the transmission lock out lever on both the RH and LH transmissions and secure into place with the locking cam.

Plunger

Released

Lockout Lever

Cam in

UNLOCKED

Position

3. The mower will “freewheel” with the levers in the LOCKOUT position. The le vers m ust be in the highest position to completely unlock the transmissions.

Lockout Lever

Plunger

Depressed

Lockout Lever - Freewheel Position

4. After moving the mower, release the locking cam, placing the lever DOWN in the normal OPERATING position. Make sure the transmission lockout plunger on the side of the transmission case (a ct iv at ed by the lo ck out lever) is completely released, otherwise the transmission operation will be erratic.

Cam in

LOCKOUT

Position

Lockout Lever - Normal Operating Position

RECOMMENDATIONS FOR MOWING IMPORTANT: Operate the engine at full speed

when mowing, to a llow the engine to produce full horsepower and to increase efficiency of the engine cooling system.

• Keep the mower deck and discharge chute clean.

• Mow with sh arp blades. A dull blade tear s the

grass (resulting in poor lawn appearance) and uses extra power (slowing the mowing speed).

• It is preferable to cut grass w hen it is dry and not

too tall. Mow frequently and do not cut grass too

short. (For best appearance , cut off 1/3 or less of existing grass height.)

• When mowing, operate the engine at or near full

throttle for the best cutting action and performance of the grass handling system (GHS). Mowing with a lower engine RPM causes the mowing bl ade to not cut clean and tear the grass. The engine is

designed to be operated at full speed.

• When mo wing in adverse conditions (tall and/or

wet grass), mow the grass twice. Raise the mower to the highest setting - 4 in. (102 mm) - for the first pass and then make a second pass cutting to the desired height.

• Use a slow setting on the FSC for trimming

operations.

Operating Instructions

• Make sure the mower is leveled properly for a

smooth cut. Refer to Deck Leveling in

Instructions

• Use an alternating stripe mowing pattern for

best appearance and vary the direction of the stripe

each time the grass is mowed to avoid wear patterns in the grass.

• Avoid damage to the grass by slipping and skid-

ding of the drive tires . Use sm oot h co ntrol mov ements of the steering levers since the hydrostatic

transmissions are “power boosted controls” and jerking the levers can easil y sl ip the t ir es . For sharp turns, do not allow the inside wheel to stop and twist on grass; pull inside steering lever into reverse for a smooth “rolling” turn (one wheel rolling forward while the other rolls backward).

• When using a side discharge mower deck, the

side discharge shield must not be removed and must be kept in the lowest possible position to deflect grass clippings and thrown objects downward. Orient the side discharge away from sidewalks or streets to minimize cleanup of clippings. When mowing close to ob stacles, or ient the si de discharge away from obstacles to reduce the chance of damage to property by thrown objects.

Discharge

Shield

Assembly

Maximum Recommended

Side Slope - Do Not Operate

on Steep Slopes

Maximum Recommended Side Slope

RECOMMENDATIONS FOR TILT-UP DECK OPERATION/TRANSPORT

To avoid potential deck and/or tractor damage while using the tilt-up deck, the following recommendations are offered:

• Do not move the tractor with the deck in the tilt-

up position since both the roller wheels (on the back of the deck) and the GHS disc harge chute may be damaged by moving the tractor. The tilt-up configuration should only be used when the tractor is parked.

Side Discharge Shield in Lowest Position

• Whe n operating on a slope, reduce sp eed and

use caution to start, stop, and maneuver. Avoid

sharp turns or sudden changes in direction. The

maximum recommended side slope operating angle is 20 degrees or 33% grade.

• The tractor body should never be tilted for-

ward with the deck in the tilt-up position. This can

cause the deck to unhook from th e tractor and fall with considerable fo rc e, po tent ial ly c au si ng de ck o r tractor damage and/or bodily injury.

• When transporting a tractor with the de ck in the

tilt-up position (on a truck or trailer), the deck should be secured to the vehicle with a strap or

rope (stop vertical movement). This will prevent the deck from bouncing on the rear roller wheels (causing breakage). This wil l a lso p re ve nt th e deck fr om unhooking from the tractor and falling, potentially causing deck or trac tor damage. Damag e to other items parked in front of the deck may also occur.

Operating Instructions

GRASS HANDLING SYSTEM (GHS) GHS Model Only

PTO and Blade

Gear Drive

Shear

Bolt

Shear Pin

PTO

Clutch

Powerfil

Drive Motor

Actuator

“Full” Signal

Rod

Horn

Catcher Door

Safety Latch

Grass-Pak

Vane Switch

Exhaust Screen

(Removable)

Exhaust

Deflector

Catcher

Door

Catcher

Door Spring

Grass Catcher

Dump Handle

Powerfil

Delivery Spout

Body Chute

Assembly

Blower

Deck

Discharge Chute

Rear Discharge

Mower Deck

GHS Flow and Components

Operating Instructions

General Information

The Grass Handling System (GHS) consists of a rear discharge mower deck connected to a 9 in. (23 cm) blower and a rear mounted gras s catcher with 6.7 bushel (238 liters) capacity. The GHS blower operates any time the mower blade clutch is engaged and moves grass through the rear discharge deck chute into the grass catc her. Blower airflow i s exhaus ted out the back of the grass catcher, through a filtering screen. When the grass catcher is full and needs to be emptied, a “full” signal horn alerts the opera- tor. When the “full” signal horn sounds, it is important to stop mowing to prevent overfilling and clogging of the blower system.

IMPORTANT: Normally, the GHS blower operates with no maintenance or cleaning required. However, under certain operating conditions, the inside of the blower housing may accumulate a deposi t of dirt, causing wear and binding of the blower wheel. Normally, dirt buildup occurs when mowing a combination of dirty and damp grass, especially in the springtime. When operating in thes e conditions, check the blower wheel frequently for binding and clean the blower hous ing as requir ed. Refer to CLEANING the GHS Blower in

nance Instructions

NOTE: In Autumn, when using the GHS mo wer to vacuum leaves, it is recommended to raise the front of the mower deck 2 to 3 notches [1 to 1- 1/2 i n. (2 5 to 38 mm)] higher than the rear. This will avoid “bulldozing” leaves, particularly when the leaves are piled in a thick layer. To make this adjustment, the hitch pins in the two (2) front deck support pins are repositioned 2 to 3 notches higher while leaving the rear pins in their original position.

Mainte-

NOTE: When a side discharge or mulching mower deck is install ed on the GH S model , a blo wer int a ke cover should be installed in the blo wer intake tu be. This cover “unloads” the blower and seals the intake to effectively eliminate power loss and blower noise when the blower is not being used.

Blower

Intake Cover

Blower Intake Cover

DANGER

ROTATING BLOWER BLADES

NEVER operate the GHS blower with the blower discharge chute un covered (gr ass catcher in the dump position) since dan gerous projectiles may be thrown. NEVER put hands into the blower discharge chute for any reason. Use a stick or similar instrument to remove any material if clogging has occurred.

DANGER

NEVER operate the GHS catcher with the back door open. Objects may be thrown out the back of the catcher with sufficient force to cause serious injury to bystanders or to damage property.

CAUTION

NEVER leave grass clippings in the grass catcher after mowing. Damp clippings generate heat as they decompose. This MAY cause spontaneous combustion.

Operating Instructions

Clogging Checklist In case of clogging, there will be a distinct change

in the sound of the blower, i.e., the blower sound will

stop. Also, the mower deck will begin to leave a trail of grass clippings. When this occurs, stop the engine, disconnect th e spark plug wire, and make sure all movement has stopped before attempt-

ing to unclog.

DANGER

NEVER place hands under the mower deck or in the GHS blower discharge chute. Use a stick or similar tool to remove any clogged material.

Normally, any clogging will first dev el op at the ba ck of the mower deck in the discharge opening into the blower chute. Clogging at this point does not indi-

cate a particular problem in this part of the system, but is a symptom of something restricting the flow of material throughout the entire

system. The following list of items should be checked if a pattern of clogg ing begins to deve lop. All of these items are capable of causing clogging at the back of the deck.

• Check to see if the RH and LH mower blades are

installed for the correct rotation - install the blad es so the cutting edges move toward each other.

Blades Must Operate at

Right Angles (90 Degrees)

FORWARD

• Check the amount of flat section re maining at

blade tip. This is the area that is ground away (removed) when the bla des are sharpened. If too much of the flat section is removed, the “air lift” performance or “shovel” effect of the blade deteriorates to the point that discharge of grass clippings into the blower chute is m arginal. Replac e cutter blades if less than 3/4 in. (19 mm) flat section remains at the blade tip.

• Check th at the interior of the dec k housing and

baffling is reasonably clean and free of grass and dirt buildup. While some degree of material buildup

can be tolerated, a point is finally reached where the flow of air and grass clippings is restricted.

NOTE: One condition that quickly causes a buildup of material in the deck housing is mowing grass and/ or weeds which are “juicy”. The material collects under the deck with stic ky, green juice. Clover and weeds are especially a pr oblem. The mower deck will need to be cleaned frequently when operating in these conditions.

• Check the deck cutting height setting. When

working in thick, t all grass, lower deck settings [1 to 2 in. (25 to 51 mm) cutting height s] tend to restrict airflow from moving into and under the deck. Rais-

ing the deck cutting height will significantly increase airflow and reduce clogging when working in th ick, tall grass.

• Check the interior of the chute connecting the

mower deck to the blower for smoothness and freedom from obstruction.

• Check the blower wheel for bent blades and

excessive clearance between the blade tip and the

blower housing. A clearance greater than 1/8 in. (3 mm) will cause a significant loss of blower performance.

Rear Discharge

Torque = 60 ft-lb

Chute

Blade Rotation for GHS Mower Deck

(View from Underneath)

Mounting Nut

(81.3 N

⋅m)

• Check the bl ower disc harge chu te into the gr ass

catcher for smoothness and freedom from obstruction.

• Check the elbow inside the grass catcher for a

buildup of material in the radius of the elbow. In certain conditions (damp/dirty grass) a considerable “clump” of material can accumulate at this point, greatly restricting material and airflow.

Operating Instructions

• Check that the openings in the air exhaust

screen in the grass catcher are no t pl ugg ed. I f th e screen is clogged, refer to Cleaning the GHS Exhaust Screen in this section.

Remember, anything that restricts airflow or material flow along the entire path from the mower deck to the grass catcher can cause clogging.

Using the Tilt-Up Deck Refer to CLEANING of Grass Build up in Mower

Housing in Maintenance Instructions. Using the GHS Catcher

Powerf i l

The GHS catcher has an oscillating grass delivery spout (POWERFIL grass clippings thr oughout the interior of the grass catcher (even when mowing wet, heavy grass). The oscillating action may be checked by turning the ignition switch to the ON position and movi ng the blade clutch to the ENGAGED position. The spout should oscillate approximately 25 cycles per minute.



) which is designed to spread

The “full” signal horn is designed to operate (sound) when the grass catcher is almost full. The timing of the signal is adjus table by chang ing the pos ition of the vane on the Grass-Pak coming on too soon (catcher not completely full) or too late (grass cl ogging in cat cher spout a nd delivery chute), refer to ADJUSTMENTS for GHS Signal

Horn Adjustment in Maintenance Instructions. NOTE: The horn signal should be adjusted to

sound BEFORE the catche r is completely full to give the operator time to react and stop mowing. An indication the horn signal is coming on too late (delayed too much) is if grass clippings are falling out of the grass catcher delivery chute when the catcher is dumped.

Cleaning the GHS Exhaust Screen

To remove the grass catcher screen f or cleaning, open the catcher doo r, push forward and pul l down on the grass catcher screen knobs (on either side of the screen), and slide the screen ou t. Use a high pressure washer or water spray and brush to clean the screen.



switch. If the signal is

NOTE: If the grass spout fails to oscillate, the clutch switch should be che cked for function (the switch closure is adjustable).

“Full” Signal Horn

The GHS catcher has a “full” signal horn to alert the operator to dump the catcher when it is full (to prevent overfilling an d clogging). The “full” signal horn is activated by a vane switch (Grass-Pak switch) mounted on the grass delivery spout. Oscillating action of the spout triggers the vane switch as grass begins to fill in around the spout when the catcher is almost full.

The “full” signal function may be checked by turning the ignition switch ON, engaging the blade clutch (engine not running), opening the catcher back door, and triggering the Gr ass-Pak oscillates. The hor n should s ound as the sw itch is moved in both directions.



vane by hand as it

WARNING

DO NOT test the Grass-Pak switch with the engine running. Projectiles may be thrown out of the grass delivery spout, and COULD cause serious injury.

Keeping the catcher exhaust screen clean and open is essential to good performance of the catching system. In some mowing conditions, e.g., wet and dirty, it will be necessary to clean the screen frequently to avoid clogging the mower dec k, blowe r, and chutes due to airflow restriction.



Grass Catcher

Screen

Removal

Knobs

Grass Catcher Screen

Removal for Cleaning

Operating Instructions

Dumping the Catcher

For dumping, th e cat ch er e ither tailg ate du mps int o a disposal area or dumps into the optional dump bag. The dump bag is a reusable nylon fabric bag desi gn ed to conv eniently move grass cl ippings from the catcher to a remote disposal area or container.

Tailgate Dumping

1. Open the back door by lifting on the door handle. NOTE: To prevent accidental door closure,

a safety latch locks the door open in the fully opened position while the catcher is being dumped.

2. Tilt the catcher back to dump by lifting on the handle on the front of the catcher.

3. Lower the catcher smoothly down to the normal operating position. DO NOT allow the catcher

to drop down.

4. Close the door by holding the door handle with the left hand and releasing the safety latch on the door hinge mechanism with the right hand. The safety latch is released by pressing in on the top of the latch. T hen, the door should close smoothly with the assistance of the gas springs.

Using the Dump Bag

1. Open the back door by lifting on the door handle.

NOTE: To prevent accidental door closure, a safety latch locks the door open in the

fully opened position while the catcher is being dumped.

2. Orient the dump bag with one of the handle straps on the bag opening facing up.

3. Hook the bottom of the bag over the rear bumper while lifting on the handle strap.

4. Tilt the catcher ba ck to dump into the bag by

lifting on the handle on the front of the catcher with one hand while continuing to hold up on the bag strap with the other hand. Refer to

photos for positioning the bag and dumping.

5. Lower the catcher smoothly down to the normal operating position. DO NOT allow the catcher

to drop down.

Safety

Latch

Catcher Door Safety Latch

Operating Instructions

Tailgate Door

Handle

Catcher

Dump Handle

Hook Bag

on Bumper

Positioning Dump Bag on Catcher

6. Close the door by holding the door handle with the left hand and releasing the safety latch on the door hinge mechanism with the right hand. The safety latch is released by pressing in on the to p of the latch. Then, the door should close smoothly with the assistance of the gas springs.

Dumping Catcher into Dump Bag

Maintenance Instructions

MAINTENANCE SCHEDULE CHART - RECOMMENDED SERVICE INTERVALS - MODEL MS

CAUTION

Maintenance procedures requiring special training or tools should be performed by a trained technician.

Service Item

Check Engine Crankcase Oil Level Check/Clean Engine Air Cooling System* Clean Grass Buildup Under Deck Clean GHS Exhaust Screen* Clean GHS Blower* Service Mower Blades Check Security of Air Filtration Components Check Air Filter Restriction Gauge Lubricate Grease Fittings and Oil Points* Check Battery Electrolyte Level Check Hydrostatic Transmission Fluid Check Tire Pressure Check Drive Belts (Engine, PTO, Ground Drive) Check PTO and Deck Gearbox Oil Seals Change Engine Crankcase Oil** Clean Fuel Filter Change Engine Oil Filter Clean Air Filter Element* Check Gear Axle Oil Level Clean Hydrostatic Transmission Cooling Fins Clean and Regap Spark Plug Clean Engine Cooling Fins Check Fuel Lines and Clamps

Daily

Hours

100

Hours Yearly

Every

2Years

Ref.

Page

x42 x50 x51 x37 x52 x54 x53 x48

x43 x53 x47 x54 x56 x56

x43 x49

x43 x48 x47 x53 x56

x50 x56

Replace Air Filter Element and Vacuator

Service Battery Check/Adjust Blade/Brake Action

Check/Adjust Vertical Postion of Grass-Pak

Change Gear Axle Oil Replace Fuel Lines and Clamps

∗ More often in extremely dusty or dirty conditions

∗∗ Change engine oil and filter after first 8 hours

∗∗∗ Replace every year or after 6 cleanings

∆ Change every 2 years or 1000 hours

 Valve***

Switch

∆

(see notes about air cleaner element under IMPORTANT TIPS FOR CARE OF KAWASAKI ENGINE)

of operation of a new engine (break-in period)

x48 x53

x56 x63

x47 x56

CAUTION

When performing maintenance with the mower body raised, a safety prop should be installed from back of body to chassis frame (fail-safe prot ection in case of f ailure of body lift support). For GHS Model, empty grass catcher before raising body.

Maintenance Instructions KAWASAKI TIPS

IMPORTANT TIPS FOR CARE OF THE KAWASAKI ENGINE

Fuel System

• Fuel must be clean - free from water, dirt, and or-

ganic material.

• Clea n the fuel filter on a regular bas is and when

contamination is suspected or found in the fuel.

Starting

• Start engine with the throttle advanced off idle

(1/4 to 1/2 throttle). This will aid starting, especially in cold weather.

• Keep the battery fully charged.

• Match crankcase oil viscos ity to the am bient tem -

perature, allowing the engine to crank faster and start easier.

• Allow eng ine to ru n at idle for a few se conds be-

fore stopping engine to avoid run-on or backfiring.

Cooling System

• Keep eng in e ai r intake sc r een and cy li nd er hea d

fins free of grass clippings , chaff, and dirt . Inspect intake screen and cooling fi ns for cleanliness and damage.

• Check performance of the cooling system by

starting the engine, holding a hand adja cent to the cylinder head, and feeling the cooling airflow.

Air Cleaner

• Use only Donaldson air cleaner elements. After-

market elements may not seal in the air cleaner housing, allowing di rt to enter the e ngine. Also, aftermarket filters often ski mp on the filtration media and require more frequent cleaning and replacement (see instructions below).

• Use the a ir flow restri ction gauge to indicate the

need to service the air filter.

• DO NOT over service or freq uently “disturb ” the

air filter. A dirty air filter actually cleans better than a new one. Changing and cleaning the filter too often can actually reduce filter efficiency and increase the opportunity for traces of dust to enter the engine. Wait until the element really needs servicing as indicated by the loss of engine power.

• When the air filter element is removed or re-

placed, make sure all dust is cleaned out of the air cleaner housing and hose. Use a damp cloth and

wipe the interior of the canis ter and hose clean (a little dirt left here will be sucke d int o the eng in e and reduce engine life). When the filter is reinstalled, make sure the element is held tight and straight in the canister for proper seating and sealing.

• Periodically check the air intake hose for cuts,

nicks, etc., and the hose clamps for tightness.

Oil

• DO NOT screw filler cap into crankcase when

checking oil level.

DANGER

Make sure to keep hands clear of exhaust pipe, muffler, and moving parts when checking airflow.

• Opera te the engine at full speed when mow ing.

This will allow the engine to produce full horsepower and move more cooling air through the engine cooling fins.

• Single viscosity or multi-viscosity oils may be

used with the viscosity m atching ambient te mperatures for the en gine opera ting condition s. Thi s will aid starting in cold weather and assure proper lubrication in hot weather.

• Use only Kawasaki oil filters. Aftermar ket filt ers

may not seal properly and/or have the incorrect

pressure relief valve for proper lubrication.

Maintenance Instructions LUBRICATION

LUBRICATION

WARNING

DO NOT attempt to lubricate the machin e with the engine running. Disengage the PTO clutch, shut off the machine, and remove the ignition key.

Proper lubrication is an important maintenance procedure. It reduces wear and makes the machine quieter and easier to operate.

Engine Oil

Engine Break-In Oil

No special break-in oil is required. The engine is serviced with 10W-30, Serv ice Class SG oil from the factory. The oil should be changed after the initial engine break-in period of 8 hours. Thereafter, change oil after every 50 hours of operation.

IMPORTANT: DO NOT operate engine without sufficient oil supply in the crankcase. DO NOT operate with oil level below the LOW (L) mark or above the FULL (H) mark on the dipstick.

NOT SCREWED IN

Filler Plug

FULL (H) Mark

LOW (L) Mark

Dipstick Position

for Checking Oil Level

Checking Engine Crankcase Oil Level

Check the engine crankcase oil level before use and

after each 5 hours of continuous operation. IMPORTANT: The importance of checking and

maintaining the proper crankcase oil level cannot be overemphasized. Check the oil level BEFORE

EACH USE.

1. Park the mower on a level surface with the engine stopped. Also, make sure the engine is

cool and oil has had time to drain into the sump [allow at least fiv e (5) minutes after stopping the engine].

IMPORTANT: NEVER check or add oil with the engine running.

2. Before removing the dipstick, clean the area around the dipstick opening in the engine block to keep any dirt or debris out of the engine.

3. Unscrew and remove the filler plug/dipstick and wipe off with a clean rag. Insert dipstick into filler hole but DO NOT screw it in to check the oil level. Remove the dipstick and check the level. The oil level should be within the safe range (between the H and L marks on the dipstick).

FULL (H)

Mark

LOW (L)

Mark

Dipstick Operating Range

4. If additional oil is needed, refer to Specifications for proper crankcase lubricant. Fill to the FULL

(H) mark. IMPORTANT: DO NOT overfill crankcase [oil

above FULL (H) level] as this CAN result in engine overheating, loss of power, and possible engine damage.

Maintenance Instructions LUBRICATION

Changing Engine Crankcase Oil/Oil Filter

Change the engine crankcase oil after every 50 hours of operation and the oil filter after every 100 hours of operation as follows:

1. Park the mower on a level surface with the engine stopped. The engine oil should be

warm before draining. If not war m f rom op er ation, start the engine a nd run a few min utes to warm the oil.

2. Before removing the dipstick, clean the area around it to keep any dirt or debris out of the engine.

3. Remove the dipstick and oil drain plug, and drain oil into a su itable container. Be sure to allow ample time for complete drainage.

4. Before removing the oil filter, clean the area around the filter to keep dirt and debris out of the engine.

5. Remove the old o il filter and wipe off the fil ter mounting surface on the engine.

Oil Filter

7. Install the new oil filter on the engine. Turn the oil filter clockwise until the rubbe r gasket contacts the sealing surfac e, then tighten the filter an additional 3/4 turn.

8. Reinstall the drain plug. Make sure it is tightened to 16.5 ft-lb (23 N

9. Fill the crankcase (through the dipstick opening) with oil using only crankcase lubricants supplied by the engine manufacturer. Refer to Specifica- tions in this manual or the engine owner’s manual. Use the recommended oil viscosity for the expected ambient temperature. Oil with the correct visc osit y wil l ai d st art ing in cold weat her and assure proper lubrication in hot weather. Fill to FULL (H) mark on the dipst ick; crankcase capacity is 2.7 pints (1.3 liters).

IMPORTANT: Check the dipstick reading before pouring in the last 1/ 2 pint of oil and fill only to the FULL (H) mark. The oil level should never be over the FULL (H) mark on the dipstick; overfilling can result in eng ine overhea ting and loss of power.

10. Start the engine and check for oil le aks aro und the oil filter. Stop the engine, recheck the oil level, and add oil if nec essar y. (When the engine is first operated with a new oil filter, the oil level will drop slightly as the filter is filled with oil.)

·m).

Dipstick (Oil Fill)

Oil Drain

Oil Drain, Dipstick (Oil Fill),

and Oil Filter Locations

(view from lower left side of tractor)

6. Apply a thin coating of new oil to the rubber gasket on the replacement oil filter.

IMPORTANT: Use ONLY oil filters from the engine manufacturer . Af termarket oil f ilters may not seal properly and/or may not have the correct pressure relief valve for proper lubrication.

Grease Fitting and Oil Point Lubrication

Lubricate the grease fittings and oil points after every 25 hours of operation. Lubricate more often when operating in dusty or dirty conditions. Use SAE general purpos e lithium or mol ybdenum base grease for grease fittings and light machine oil (SAE

10) to lubricate oil points. Lubricate the locations

shown in the Chassis and Deck Lubrication Points illustration.

NOTE: PTO universal joi nts (on the deck and trac-

tor) require routine lubrication after every 8 hours of running time.

NOTE: The pil lowblock beari ngs on the PTO drive shaft are a sealed, relubricatable-type bearing. Grease lightly once per year using care to not over-lubricate and damage the seals.

Maintenance Instructions LUBRICATION

Ident Lubrication No. No. Location Type Places

 'HFN&DVWHU:KHHO)RUN3LYRW *UHDVH   %ODGH'ULYH*HDUER[ 2LO  7HH*HDUER['HFN 2LO  'HFN&DVWHU:KHHO%HDULQJ *UHDVH   8QLYHUVDO-RLQW6KDIW$VVHPEO\ *UHDVH  3LYRW$VVHPEO\7LOW8S'HFN *UHDVH   'HFN6XSSRUW$UP6RFNHW *UHDVH   6WHHULQJ/HYHU3LYRW *UHDVH 

 %RG\+LQJH3RLQW 2LO   )6&$FWXDWRU5RG3LYRW3LQV 2LO   )6&/HYHU3LYRW *UHDVH   )6&/HYHU)RUN *UHDVH 

*UHDVH6OLGH$UHD  )6&)ULFWLRQ%RG\3LYRW *UHDVH   'HFNWR372&RXSOLQJ *UHDVH 

*UHDVH6OLGH$UHD  'HFN6XSSRUW$UP3LYRW *UHDVH   8QLYHUVDO-RLQW7XEH$VVHPEO\ *UHDVH  3DUNLQJ%UDNH/HYHU *UHDVH   3LOORZEORFN%HDULQJ'ULYH6KDIW *UHDVH  *HDU$[OH 2LO  &OXWFK&RQWURO/HYHU3LYRW *UHDVH   &OXWFK&RQWURO&OHYLV3LQ 2LO   6FUXEEHU%UDNH/LQNDJH 2LO 

*+60RGHO2QO\  &OXWFK$FWXDWRU5RG *UHDVH 

*UHDVH6OLGH$UHD  372%HOW7LJKWHQHU3LYRW *UHDVH   (QJLQH'LSVWLFN2LO)LOOHU 2LO  &DWFKHU+LQJH3RLQW 2LO   7KURWWOH&RQWURO&DEOH(QGV 2LO   &KRNH&RQWURO&DEOH(QGV 2LO 

   

 

∆

 

Ident Lubrication No. No. Location Type Places

 (QJLQH%HOW7LJKWHQHU3LYRW *UHDVH   5LJKW$QJOH*HDUER[7UDFWRU 2LO  +\GURVWDWLF'ULYH 2LO  *URXQG'ULYH%HOW7LJKWHQHU3LYRW *UHDVH   &KRNH&RQWURO3LYRW 2LO   7KURWWOH&RQWURO3LYRW 2LO 

 *HDUER[HVDUHSHUPDQHQWO\OXEULFDWHGDQGVHDOHGUHTXLULQJ

QRVFKHGXOHG OXEULFDWLRQ 2LOOHYHO VKRXOGEHFKHFNHG RQO\ ZKHQDQRLOOHDNLVQRWHG

 *UHDVHHYHU\HLJKWKRXUV

 5HIHUWR*HDU$[OH/XEULFDWLRQ(QJLQH2LO7UDFWRU372

*HDUER[ /XEULFDWLRQ DQG +\GURVWDWLF 7UDQVPLVVLRQ )OXLGLQWKLVVHFWLRQ

∆

6HDOHGUHOXEULFDWDEOHW\SHEHDULQJVJUHDVHOLJKWO\RQFH SHU\HDUGRQRWRYHUJUHDVHRUVHDOVZLOOEHGDPDJHG



NOTE: DGHS42 Tilt-Up Deck is shown for reference.

For other Deck Lubrication Points, Refer to Deck and Carrier Frame Illustrated Parts

Manual.

   

Maintenance Instructions LUBRICATION

6 8

27 & 34

28 & 33

7 6

17 18 19

18 20 21

2222

2323

2222

2424

Chassis and Deck Lubrication Points

Maintenance Instructions LUBRICATION

Mower Deck Gearbox Lubrication

The mower deck gearboxes (tee gearbox and blade drive gearboxes) are connected as a unitized assembly, and oil flows freely between them. The gearboxes are permanently lubricated (oil filled) and sealed requiring no scheduled lubrication. However, the gearbox oil seals should be checked every 2 5

hours for indication of an oil le ak; par ti cu la rl y t he lower seals on the blade drive gearboxes should be

inspected, since they operate in a dirty environment. If an oil leak is noted , repla ce the oi l seal and rel ubricate the gearbox assembly as follows:

1. Remove gearbox cover (foot rest). Deck or ientation should be the normal operating position.

Blade Drive

Gearboxes

Tee

Gearbox

Mower Deck Gearboxes

(shown with gearbox cover removed for clarity)

NOTE: Since the gearboxes are connected as

a unit by connector tubes, it is necessary to add oil slowly. Allow a few minutes after adding oil for the oil to flow throughout the assembly and the oil level to stabilize before reassembly.

IMPORTANT: DO NO T overfill the deck gearboxes. The gearbox assembly is not vented, and overfilling with oil will cause excessive pressure and result in oil leaks.

5. Check condition of the cover gasket and replace if worn or damaged. Reinstall gearbox cover plates; torque screws to 24 in-lb (2.7 N

Tractor PTO Gearbox Lubrication

The tractor PTO gearbox is permanently lubricated (oil filled) and sealed requiring no scheduled lubrication. However, the gearbox oil seals should be checked every 25 hours for indication of oil leaks. If evidence of an oil leak i s noted, replace the oil se al and relubricate the gearbox. The gearbox will need to be removed from the tractor to be serviced. Refill with SAE E.P. (extreme pressure) 90W oil until oil level is up to (submerges) horizontal shaft of gearbox (shaft parallel to cover). DO NOT overfill.

NOTE: In case the gearboxes are completely drained of oil, approximately 5 fl. oz. (15 cl) of oil per gearbox is required to refill the gear drive assembly.

·m).

2. Clean the area around the indi vidual gearbox cover plates to prevent contaminants from entering the gearcase.

3. Remove the screws securing the cover plates on the blade drive gearboxes.

4. Check the level of lubricant in the gearboxes. If the lubricant is low, add SAE E.P. (Extreme Pressure) 90W oil until the oil level is up to (submerges) the horizontal shaft in the gearbox (shaft parallel to cover plate).

NOTE: In case the gearboxes are completely drained of oil, approximately 5 fl. oz. (15 cl) of oil per gearbox is required to refill the gear drive assembly.

PTO

Gearbox

Tractor PTO Gearbox

Maintenance Instructions LUBRICATION

Gear Axle Lubrication

• The gear axle oil lubrication is SAE 80W-90 (API

GL-5) gear lube.

• Check the axle oil level after every 100 hours of

operation by removing the oil level plug. If additional oil is needed, remove the breather vent on top of axle and fill until oil is at the level plug.

• Change axle oil every 1000 hours or two (2)

years. Hydrostatic Transmission Fluid

Checking Hydrostatic Transmission Fluid Level

Hydrostatic transmission fluid level should be checked every 25 hours of machine operation. It is preferable to check the fluid level when fluid is cold. Check fluid level as follows:

1. Park the mower on a level surface. Sto p th e engine and wipe dirt and contaminants from around the reservoir cap and air bleed plug.

IMPORTANT: Before removing the reservoir cap, clean any dirt from around it. Any dirt or contaminants entering the transmission will accelerate wear and eventually cause loss of power to the drive wheels.

* Slowly add fluid into the res ervoir until

fluid starts to leak from around the plug. (Transmissions are serviced from the factory with Mobil DTE 18M hydraulic oil. When it is neces sary to add fluid, refer to Specifications for the proper fluid. Use any of the fluids listed.)

* As soon as there is fluid leaking from

around the air bleed plug, tighten the plug and fill the reservoir to the COLD level mark. Wipe any excess oil off of the transmission housing.

Reservoir Cap

Hot Level

Cold Level

Air Bleed

Plug

Transmission Reservoir

and Air Bleed Plug Location

2. Remove the reservoir cap and check the level of the fluid. Th e reservoi r has a flui d level COLD mark and HOT mark. The reservoir oil leve l

should ALWAYS be at or above the COLD mark and NEVER above the HOT mark.

3. If the fluid is below the COLD mark (or the transmission is not performing properly), loosen the air bleed plug (located on the top of transmission case next to the plastic reservoir).

a. If a small amount of fluid leaks from around

the air bleed plug: * The transmission is full of fluid. * Tighten the plug and fill the reservoi r to

the COLD level mark.

b. If no fluid leaks from around the air bleed

plug:

IMPORTANT: DO NOT overfill the transmission reservoir . This will result in oil leaking out of the reservoir cap vent when the transmission warms up. It is preferable to add fluid to the transmission when it is cold and make sure the oil is not above or be-

low the COLD level mark. IMPORTANT: The transmission reservoir has a fine

mesh screen in the bottom to trap dirt and foreign particles from entering the transmission. When filling the reservoir, fluid will flow quite slowly through this screen; so it is essential that there is fluid at the bleed plug before the transmission is considered full.

IMPORTANT: Any attempt to remove or in any way alter the filtering screen in the transmission reservoir could cause damage to the transmission and will VOID any transmission warranty.

Maintenance Instructions CLEANING

CLEANING Engine Air Cleaner System

Donaldson Radialseal™ Air Cleaner

A remote mounted Donaldson Radialseal™ air cleaner provides the air filtering function. The paper filter element slides over an outlet tube inside the air cleaner canister with radial sealing action, eliminating the possibility of dust leaks due to improper filter installation. Intake design, interna l baffling, and a Vacuator™ valve provide dust separation and automatic precleaning action. Daily or frequent servicing of the air cleaner is not required. Use the air restriction gauge on the air cleaner outlet to indicate when the air filter needs servi cing - - a red fla g wil l appe ar when the filter is overly restricting airflow into the engine.

IMPORTANT: Use only Donaldson air filter elements for replacement (Donaldson P822686 or Walker 5090-1). Aftermarket filters may not seal properly or filter efficiently.

Canister

Radialseal™

Filter Element

Air Cleaner Components

(shown with cover being removed)

IMPORTANT: The Donaldson air cleaner uses a dry

paper-type air filter element. NEVER apply oil to the paper element.

Cover

Cover Latch

Vacuator™

Valve

Clean and insp ect the paper element after every

100 hours of service and replace the element yearly or after six (6) cleanings (or when dirty or

damaged). More frequent cleaning may be required when operating in extremely dusty conditions as indicated by a loss of engine power. Service the air cleaner as follows:

1. Release the top and bottom cover la tches and remove the ai r clean er cover. Wash the co ver and Vacuator™ valve. Check that these components are in good condition. The Vacuator™ valve is subject to wear and deterioration and should be replaced yearly or when da maged. The lips of the valve should close and fit together; any cracks, deformation, or wear in the valve is cause for replacement.

2. Remove the filter element by pulling it out of the canister. There will be some initial resistance as the filter seal breaks loose and slides off of the outlet tube. Gently move the end of the filter up and down and side to side or twist to loosen the seal. Use gentle action to minimize the amount of dust dislodged as the filter is removed.

Push Button to Reset

Indicator After Service

Air Restriction

Gauge

Air Restriction Gauge Location

3. Clean the filter element using low pressure compressed air [les s than 100 PSI (68 9 kPa)]. Blow out the filter from the interior of the element while turning the element.

NOTE: Washing the element in water or cleaning solution is not recommended. Replace the element if it does not clean up with compressed air.

Maintenance Instructions CLEANING

4. Use a bright light inside the element to inspect for damage. Check the e lement very ca refully for pin holes or other damage that will allow dirt to leak through the paper me dia. Replace element if necessary.

5. Check the condition and resilience of the radial sealing surface (inside of the open end) of the filter. Replace the filter if any cra cks, tears, or other damage to the sealing surface are noted.

6. Use a clean, damp cloth and wipe the interior of the air cleaner canister clean. Use special care to clean both the inside and outside surfaces of the outlet tube.

IMPORTANT: Any dust left on the inside of the outlet tube will go into the engine and cause wear.

7. Check the outside surface of the outlet tube for smoothness and cleann ess (this is the seal ing surface).

8. Insert and seat the filter element c arefully into the canister, applying pressure at the o ute r rim of the filter; not at the flexible center. Make sure the filter element is completely in place befor e installing the cover.

IMPORTANT: DO NOT use the cover latches to force the filter i nto the canister -- the cov er should fit on with no extra force.

NOTE: DO NOT use petroleum based lubricants on the sealing surfaces of the filter; use talcum powder or dry silicone lubricants if required for filter installation.

9. Install the cover with the word "TOP" prope rly oriented to the top of the canister. Give the cover a slight twist as it reaches the ca ni ste r to make sure the tab inside the cover goe s into a slot, otherwise the cover will not fit properly. Make sure both the top and bottom cover latches are securing the cover in place.

Cover Latch

Vacuator™

Valve

Proper Orientation of Air Cleaner Cover

10. Che ck the air intake hose for cuts, nicks, etc., and the hose clamps for tightness.

11. Res et the air restrict ion indicator (p ress button on bottom).

Fuel Filter Clean and inspect the fue l filter screen after eve ry

50 hours of service. Replace if damaged. Servic e

the fuel filter as follows:

Orient to Top

of Canister

Cover Latch

Radialseal™

Filter Element

Air Filter Element Replacement

Outlet Tube

Radial Sealing

Surface

Canister

Safety Filter

Fuel Shut-Off

Valve

Fuel Filter and

Sediment Bowl

Fuel Filter and Fuel Shut-off Valve Location

Maintenance Instructions CLEANING

IMPORTANT: Service the fuel filter screen only in a clean area where th e fuel filte r comp onents wi ll not be contaminated by any dust and dirt.

DANGER

Gasoline is extremely flammable and can be highly explosive. To minimize danger:

• Use an approved fuel container for gas-

oline.

Rotating

Engine Air

Intake Screen

• DO NOT allow open flames or sparks

while performing maintenance or refueling; DO NOT smoke while working with fuel.

• Wipe up spilled gasoline immediately

and completely.

1. Close the fuel shut-off valve.

2. Loosen sediment bowl and remove filter screen and gasket. Replace filter screen, if damaged (use only Kawa saki r eplacem ent filt er #49019-

2095).

3. Remove any sediment, wipe clean and reinstall assembly.

4. Open the fuel shut-off valve.

Engine Cooling System

Air Intake Screen

To pr ev en t engine ov er he ati ng an d poss ibl e eng in e damage, clean gr ass clippin gs, chaff, and dir t from the rotating engine air in take screen after every 8 hours of operation. In certain mowing condi tions (dry grass , le aves , t ree “c ott on ”, et c.) it m ay be ne cessary to check and clean this area several times each day to prevent engine overheating.

Engine Air Intake Screen

Cylinder Head Cooling Fins

It is essential for performance and lo ngevity of the air-cooled engine to keep the cylind er he ad co oli ng fins clean and free of obstruction. After every 8 hours of operat ion, check the performance of the cooling system by starting the engine, holding a hand adjacent to the cy linder head , and feeling the cooling airflow. If there is little or no airflow, clean the cooling fins as follows:

DANGER

Make sure to keep hands clear of exhaust pipe, muffler, and moving parts when checking airflow.

NOTE: The planned maintenance schedule calls for cleaning the cylinder head cooling fins yearly or every 300 hours as a minimum.

Cylinder Head

Shroud

CAUTION

Operating the engine with a blocked air intake screen, dirty or plugged cooling fins, and/or cooling shrouds removed will cause engine damage from overheating.

Check for Airflow

Cooling System Airflow

Maintenance Instructions CLEANING

1. Inspect accessible cooling fin s and clean with compressed air as needed. If the buildup is excessive, refer to step 2.

2. Remove the spark plug wire and disconnect the breather tube on the valve cover. Do not disconnect the breather tube fr om the carburetor side. Remove the cylinder head shroud by removing the five (5) bolts, as shown in the

Inspect and Clean Cylinder Head Cooling Fins photo. Cover the breather tube end and

spark plug boot before cleaning out the cooling fins. Clean the cooling fins by blowing with compressed air. If the buildup is excessive, use a piece of wire to probe into the fins for cleaning.

3. Reinstall the shrouds by reversing the preceding steps. Start the engine and confirm the cooling airflow.

Spark Plug

Wire

Breather

Tube

Grass Buildup in Mower Housing

DANGER

Before raising or removing the mower deck for cleaning, stop the engine, remove the ignition key , and disconnect the spark plug wire.

1. Raise the deck lock lever handle on each side of the carrier frame and pull out to rel ease carri er frame for tilting action.

2. Using the carrier frame lift handle, raise deck to the TILT-UP posi tion and inser t the deck hook into the tilt-up latch on the tractor body.

Cylinder Head

Shroud Bolts

Inspect and Clean

Cylinder Head Cooling Fins

(viewed from left side of tractor)

Body Bracket

Deck Secured in Tilt-Up Position

3. Clean grass buildup underneath the deck using a pressure washer (and scraper if required).

NOTE: If the buildup is severe, it may be easier to clean the deck by removing the deck assembly from the tractor and standing the deck assembly on its “nose”.

NOTE: While some degree of material buildup in the mower deck housing can be tolerated, a point is finally reached where cutting quality

deteriorates and clogging begins to occur

because of too much buildup on the bafflin g and housing.

4. Lower the deck to the normal operating position and re-engage the deck lock levers.

Maintenance Instructions CLEANING

2. Use a pressure washer or water spray, and

CAUTION

Do not operate machine with deck tilt-up pivot joint unlocked.

GHS Blower

Normally, the GHS blower operates with no maintenance or cleanin g. However, when mowing grass that is dirty and damp (especially spri ngtime mo wing), a deposit of dirt may accumulate inside the blower housing, causing wear and binding of the blower wheel. W hen op erati ng in thes e co ndi tio ns ,

inspect the blower frequently for dirt buildup. NOTE: A visual clue of binding of the blower wheel

is the blower blade tips are polished from rubbing on dirt.

When a dirt deposit is found, use a high pressure washer or water spray to clean the inside of the housing as follows:

direct the spray inside the blower housing against the blower blades. Water pressure will cause the blower wheel to begin to spin, and the combination of spinning action and water will effectively wash the inside of the housing. Spray may be directed against the blower blades vertically and horizontally to cause rotation in both directions for thoro ugh washing action. Wash blower until the blower wheel spins freely in both directions.

Blade Clutch

Lever

Belt Tightener

Idler Pulley

Compound

Pulley

PTO

Drive Belt

DANGER

Before attempting to wash the blower, stop the engine, remove the ignition key, and disconnect the spark plug wire.

1. Remove the PTO drive belt from the GHS blower pulley as follows: Move the blade clutch (in direction of engagement) far enough to relax the belt scrubber brake with out tightening the PTO drive belt. Roll the belt off of the blower pulley, then move blade clutch to full “engagement” position. Both the drive belt and scrubber brake bar should be clear of blower pul ley, allo wing

free movement of the blower wheel. IMPORTANT: With the belt removed, the blower

wheel must spin freely. Any binding or dra gging of the wheel is an indication of dirt buildup. This buildup must be cleaned to avoi d abrasive wear of the blower blades, excessive power loss and even tual loss of b lower performance (clogging).

PTO Drive Pulley

Belt Scrubber Brake

(Relax to Remove PTO Drive Belt)

PTO Drive Belt Removal

for Clea ni ng GH S Blower

3. Reinstall the PTO drive belt by reversing the removal procedure.

GHS Exhaust Screen Refer to Cleaning the GHS Exhaust Screen in

Operating Instructions.

GHS

Blower

Pulley

Maintenance Instructions

CLEANING/

CHECKING/SERVICING

Hydrostatic Transmission Cooling Fins

Keeping the cooling fins on the hydrostatic transmissions clean and free of obstruction is essential to avoid overheating the transmission fluid and shortening transmission life. The cooling fins should be checked every 100 hours; and cleaned if necessary.

T o clean the fins, use compressed air and/or a pressure washer. The cooling fins extend all the way around the housing -- the fins underneath need to be clean as well as the more vi sible fins ab ove. Also, pay close attention t o the area under the drive pulley .

IMPORTANT: In case an oil leak dev elops on the input shaft, the cooling fan blowing du sty ai r and oil on the transmission will quickly pack the cooling fins with oily dirt. If this condi tion occurs, replace the seal immediately to avo id overheating and dama ging the transmission. The input shaft assembly and seal are easily replaced without removing the transmission from the machine.

An additional procedure in maintaining transmission cooling is to inspect t he cooling fans. Replac e the fan(s) if blades are missing or damaged.

CHECKING/SERVICING

DANGER

To prevent accidental starting of the engine when servicing or adjusting th e machine, remove the key from the ignition switch and disconnect the sp ark plug wire.

Security of Air Filtration Components NOTE: The following inspection is only an external

inspection and sh ould be done without “disturbing” the filtration components.

On a daily basis, visually inspect the external condition of the complete air cleaner system. The following items should be inspected:

1. Check the Donaldson Radialseal™ air cleane r canister for damage. Make sure the cover is in place and the cover latches are secure - do not run the engine with out the air clean er cover in place and secure.

2. Inspect the air intake hose for cracks, nicks, cuts, etc., and check the hose clamps for tightness.

Cooling

Fans

Cooling Fins

Hydrostatic Transmission Cooling Fins

Battery NOTE: For initial battery service during setup, refer

to Battery Service in Assembly Instructions. IMPORTANT: Make sure battery is securely

mounted in the frame. A loose ba ttery may cause damage to the case resul ting in acid leakage and severe damage to the machine. A haz ard may be created by damage to critical working parts and safety systems.

Electrolyte Level

The battery electrolyte level should be checked after every 25 hours of operation. To check electrolyte

level:

1. Remove battery cell filler caps.

2. Check the electrolyte level. If the level is below the bottom of the vent well, fill with drinking water to the bottom of the vent wells [1/4 to 1/2 in. (6 to 13 mm) above the plates].

Maintenance Instructions

CHECKING/SERVICING

3. Replace filler caps. IMPORTANT: DO NOT overfill the battery. Electro-

lyte will overflow through the vent tube onto parts of the machine and WILL result in severe corrosion.

Cleaning the Terminals

If battery terminal s are corroded, remove battery from the mower. Using a wire brush, remove corrosion with a solution of one part baking soda and four parts wat er. Rinse with clean water. Coat the terminals with p etroleum jelly or ter minal protector spray to retard further corrosion.

Charging the Battery

DANGER

BATTERIES PRODUCE EXPLOSIVE GASES

• Charge the battery in a well-ventilated

area, so that gases produced while charging can dissipate.

• Keep sparks, flames, and smoking ma-

terials away from the battery at all times.

• Make sure the battery cap vents are open

(check manifold vent on each cap).

• Make sure the battery charger is un-

plugged before connecting or disconnecting cables to the battery.

Tire Pressure

Inflate tires to pressures shown below: Deck Caster Wheel = 20 PSI (137 kPa)

Drive = 15 PSI (103 kPa) Rear = 20 PSI (137 kPa)

Sharpen Mower Blades Check mower blade(s) for straightness, sharp-

ness, condition of the cutting edge, and balance every 10 hours of operation ( or more often when

mowing abrasive typ e grass or operat ing on sandy soils). Replace blades if worn, bent, cracked, o r

otherwise damaged (refer to REPLACING/ REP AIRING the Mower Blades in this section).

Use t h e foll owing pro cedure to c heck a nd sharpen blades:

NOTE: Keep blades sharp - cutting with dull blades not only yiel ds a p oor mowin g job b ut slo ws the cutting speed of the mower and causes extra wear on the engine and blade drive by pulling hard.

1. Stop the e ngine, remove ig nition key, and disconnect the spark p lug wire before raising the mower deck to service blades.

2. Rais e the de ck and secure it in the tilt-up position (refer to Deck Secured in Tilt-Up Position photo in CLEANING of Grass Buildup in Mower Housing in this section).

DANGER

Check the battery charge by measuring the specific gravity of elec trolyte; if specif ic gravity is l ess than

1.225, the battery will need to be charged as follows:

2. After charging the battery, use drinking water to adjust the electr olyte lev el to the bottom of the vent wells [1/4 to 1/2 in. (6 to 13 mm) above the plates].

NEVER operate cutter blades with the deck in the raised position.

3. Check the blades for straightness by m arking the blade tip position ins ide the deck housing, and then rotating the opposite end of the blade to the same position and comparing . If the difference in blade tip track is more than 1/8 in.

(3 mm), the blade is bent and should be replaced.

Maintenance Instructions CHECKING/SERVICING

WARNING

Intersection

DO NOT try to straigh ten a blade that is bent. NEVER weld a broken or cr acked blade. ALWAYS replace with a new blade to assure safety.

Sharpen at Original

30° Angle

Wear Area

4. If the blade cutting edge is dull or nicked, it should be sharpened. Remove blades for sharpening by grasping the end of the blade using a rag or a thick, padded glove, while loosening and removin g the nut, lock washer, and flat washer that mounts the blade.

5. Grind cutting edge at the same bevel as the original. Sharpen only the top of the cutting edge to maintain sharpness.

NOTE: Blades can be sharpened with an electric blade sharpener, conventional electric grinder, or a hand file.

CAUTION

ALWAYS wear eye protection and gloves when sharpening a blade.

6. Check blade balance by positioning the blade horizontally on a blade balancer or use a nail or shaft through the center hole. If either end of the blade rotates downward, gr ind (remove) metal on that end until the blade will balance. The blade is properly balanced when neither end drops. Balance of a blade is generally maintained by removing an equal amount of material from each end of the blade when sharpening.

30°

Do Not Grind or

Sharpen on Underside

Mower Blade Profile For Sharpening

Blade Balancer

Blade Balanced on Magnetic

Wall-Mounted Balancer

7. Mount the blade with wing tips pointing up i nto the housing. Reinstall the blade, washer, lock washer, and nut. Tighten the nut to 60 ft-lb

(81.3 N

·m).

Wing Tip

NOTE: Whe n reinstalling blades on GHS models, remember, the blades turn toward each other (counter-rotate) and the RH and LH blade cannot be switched. Check for proper blade rotation before installing blades on the deck. Refer to Blade Rota-

tion for GHS Mower Deck illustration shown in Clogging Checklist in

correct blade rotation.

Operating Instructions for

Maintenance Instructions CHECKING/SERVICING

Drive Belts

Raise the body and inspect the condition of the three (3) drive belts after every 25 hours of operatio n -- engine, PTO drive, and ground drive. If the be lts show signs of cracking or deteriorating, the belts should be replaced. Refer to REPLACING/REPAIR-

ING the Drive Belts in this section. Mower Deck Gearbox Oil Seals

The mower deck gearbox seals should be inspected

every 25 hours for evidence of oil leaking; particularly the lower oil seal on the blad e drive gearbox. This seal is protected by the trash guard on the

blade hub and seal prot ector plate o n the ho using, but is still vulnerable to seal damage due to operating in an adverse environment. The mower blade must be removed f or ins pectio n of the s eal, so it is r ecommended to inspect the gearbox seals when blades are removed for sharpening. If an oil leak is noted, the seal should be repl aced and the gearbox assembly relubricated. Refer to LUBRICATION for Mower Deck Gearbox Lubrication in this section.

Breaker Points

The Kawasaki engine is equipped with electronic ignition. No breaker poi nts, main te nance, or adj us tments are necessary with this sys tem. Contact an authorized Kawasaki engine dealer in case of i gnition failure.

Fuel Lines and Clamps Every year, inspect the fuel line from the tank to

engine for deterioration or damage. Also, inspect the fuel line clamps for tightness. Good preventive maintenance calls for complete replacement of fuel lines and clamps every two (2) years.

Blade Brake Action

WARNING

It is important to check and maint ain blade brake action for safe operation of the machine.

Spark Plug Every 100 hours, remove the spark plug, insp ect,

clean, and reset the gap (or replace with a new plug). Clean spark plug with a wire brus h. If the

electrodes are burned short or pitted, replace the plug (refer to replacement plug). Check the spark plug gap with a wire-type feeler gauge and set the gap between

0.028 and 0.032 in. (0.7 and 0.8 mm). Reinstall and tighten to 17 ft-lb (23 N

Specifications for the proper type of

·m).

Check the function of the cutter blade br ake (and blower brake on GHS models) by engaging the blade clutch (PTO), operating the engine at full throttle, then disengaging the clutch and measuring how quickly the blades s top. Watch the rotation of the blade drive shaft and bl owe r pul le y a s a v isual i ndi cation that movement has s topped. If the brake is

working properly, all rotation will stop five (5) seconds after disengagement of the clutch. If the

brake system malfunc tions -- blad es do not stop in five (5) seconds -- adj ust or repair the brake before operating the mower.

Maintenance Instructions REPLACING/REPAIRING

REPLACING/REPAIRING

DANGER

To prevent accidental starting of the engine when replacing parts or repa iring the machine, remove the key from the ignition switch and disconnect the spark plug wire.

IMPORTANT: ALWAYS use genuine factory re-

placement parts. Substitute parts CAN result in product malfunction and possible injury to the operator and/or others.

PTO Drive Belt

Drive Belts There are three (3) individual belts on the machine:

• Engine Belt

• PTO Drive Belt

• Ground Drive Belt

The belts may be removed and re placed using the

procedures described on the following pages.

Engine Belt

Ground Drive Belt

Belt Locations

Maintenance Instructions REPLACING/REPAIRING

Engine Belt

1. To remove the engine belt: a. Relax the belt by depressing the spring-

loaded idler arm.

Compound

Pulley

Tension Spring

b. Roll the belt off the compound pul ley and

remove the belt.

Engine Belt

Idler Pulley

Push Idler Pulley

to Relax Belt

Belt Tightener

Arm

Engine Pulley

Engine Belt (Disengaged)

2. Reverse the removal procedure to replace the engine belt.

Compound

Pulley

Tension Spring

Engine Belt (Engaged)

Engine Belt

Idler Pulley

Belt Tightener

Arm

Engine Pulley

Maintenance Instructions REPLACING/REPAIRING

PTO Drive Belt

1. To remove the PTO drive belt: a. Remove the engine belt, as described in

previous section.

b. Remove 1/4-20 x 3/4 bolt locating belt

guide on gearbo x pulley and rotate guid e to clear belt.

Remove Bolt and Rotate Belt Guide to Clear Belt

Engage Clutch

Clutch Idler Pulley

c. Move bla de clutch ( in directi on of engage -

ment) far enough to relax belt scrubber brake without tightening the PT O drive belt. Roll belt off PTO drive pulley and GHS blower pulley (GHS model only).

2. Install the PTO drive belt by reversing the removal procedure. Check scrubber brake adjustment and brake action.

Compound Pulley

Belt Guide

Blade Clutch

Lever

Clutch

Actuator Assembly

PTO Belt Tightener

Linkage

PTO

Drive Belt

GHS

Blower

Pulley

PTO Drive

Pulley

Belt Scrubber Brake

(Relax Brake to Remove Belt)

PTO Drive Belt Removal

Maintenance Instructions REPLACING/REPAIRING

Ground Drive Belt

1. To remove the ground drive belt: a. Raise the spring-loaded idler to relax belt.

Raise Idler Pulley to Relax Belt

Idler Pulley

Belt Tightener Arm

Tension Spring

Hydrostatic

Drive Pulley

b. Slide belt off pulleys, then release the

idler.

Transmission

Drive Pulley

Ground Drive

Belt

Hydrostatic

Drive Pulley

Ground Drive Belt Assembly (Disengaged)

2. Reverse the procedure to install the ground drive belt.

Idler Pulley

Belt Tightener Arm

Tension Spring

Hydrostatic

Drive Pulley

Ground Drive Belt Assembly (Engaged)

Transmission

Drive Pulley

Ground Drive

Belt

Hydrostatic

Drive Pulley

Maintenance Instructions REPLACING/REPAIRING

Blade Overload Shear Bolts The cutting blade is key ed to the bl ade hub by two

(2) shear bolts (10-24 x 5/8 in. stainless steel ma-

chine screws). These bolts are desi gned to shear and protect the blade drive gearbox from damage if the blade encounters a shock load.

Cutting Blade

Shear Bolts

Cutting Blade Shear Bolts

NOTE: Tightening the 5/8-18 blade mounting nut to 60 ft-lb (81.3 N shock load protect ion. It is important to not overtighten the mounting nut since this defeats (over-

rides) the function of the shear bolts. If these bolts shear, remove the blade and install

new bolts. Refer to CHECKING/SERVICING in this section for Sharpen Mower Blades which describes the blade removal and installation procedure.

·m) is also important for proper

PTO Shear Pin

The PTO drive shaft connection to the deck gearbox has a shear pin to pr ovide shoc k load pro tection to the mower de ck drive. This syst em provid es prima- ry shock protection in case of blade impact and will normally shear be fore the indivi dual she ar bolts on the blade hub.

When the PTO pin has shear ed, use the following procedure to replace it:

1. Loosen the two bolts securing the PTO shaft guard on the deck ; lift the guard o ff. (Holes in guard are slotted for easy removal.)

2. Rotate U-joint on shaft to align the shear pin hole with the hole (and she ar pin fragment) in the shaft. Use a punch to drive the remaining portion of the old shear pin out.

3. Install new shear pin and secure with cotter pin.

Set Screw

Shear Pin

Split Spring Pin

U-Joint

Tube Assembly

After reinstalling the blade, check blade timing by moving blades through one (1) comple te revolu- tion. Make sure blade tips pass clear of each other. If timing is incorrect, contact your Walker Dealer.

U-Joint

Shaft Assembly

Cotter Pin

PTO Shear Pin

IMPORTANT: Use only Walker P/N 8067-13

shear pins for replacement to provide proper shock protection -- these pins are hardened to shear under a specific amount of load.

4. Reinstall the PTO shaft guard.

Before operating the deck , inspect the blade overload shear bolts and also check blade timing (on gear driven decks) by moving blades through one (1) complete revolution. Ma ke sure blade tips pass clear of each other. If timing is incorrect, contact your Walker Dealer.

Maintenance Instructions REPLACING/REPAIRING

Mower Blades

WARNING

Mower blades are removed and remounted as described in the Sharpen Mower Blades instructions (refer to CHECKING/SERVICING in this section). During the course of sharpening and inspecting mower blades, if there are any of the following con-

ditions of wear or damage, blades should be replaced for reasons of safety and performance of the

machine:

• An exc essive amount of the flat section of the

blade has been ground away (removed) when the blade is sharpened. Replace the bla de when less than a 3/4 in. (19 mm) flat section remains at the blade tip.

• Examine ends of the blade carefully, especially the

intersection where the flat section of the blade turns up to form the “wing tip ” (ref er to CHECKING/SE R- VICING for Mower Blade Profile for Sharpening il- lustration in Sharpen Mower Blades instructions). Since sand and abrasive material can wear metal away in this area, the blade should be replaced

when metal thickness has worn to 1/16 in. (1.6 mm) or less.

DO NOT try to straighten a blade that is bent. NEVER weld a broken or cracked blade. ALWAYS replace with a new blade to assure safety.

Reinstall the blades following procedure from Sharpen Mower Blades instructions in CHECKING/SERVICING in this section. If blades are replaced, always

use Walker original equipment blades to ensure safety and optimum performan ce. The qu ality and performance of replacement blades offered by

other manufacturers cannot be guaranteed, they could be dangerous.

CAUTION

ALW A YS use genuine factory replacement parts. Substitute part s CAN result in product malfunction and possible injury to the operator.

DANGER

When blades are operated over sandy soil, and if blades are allowed to wear, a “slot” may be worn into the wing tip of blade. Eventual ly a pie ce of th e bl ade may b re ak off creating a serious potential for injury or damage.

• Check the blades for straightness by marking

blade tip position ins ide the dec k housing an d then rotating the opposite end of the blade to the same position and comparing. If the difference in blade tip track is more than 1/8 in. (3 mm), the blade is bent and shou ld be replaced.

• Inspect the blade surface, especially in formed

areas, for cracks. Replace the blade i f any crac ks are found.

Maintenance Instructions ADJUSTMENTS

ADJUSTMENTS Steering Levers

An adjustment ran ge of approximately 3 inches is available on the steering levers - the levers can be adjusted forward or aft depending on the arm length of the operator. The levers can be adjusted by loosening the locknut at the pivot point and the locknut holding the lever in position in the adjustment slide. Adjust levers into most comfortable position and tighten both locknuts.

Adjustment

Slide

Steering Lever Adjustment

Tilt-Up Deck Adjustable Stop

When the carrier frame hinge joint is properly adjusted, the deck lock levers should move in and out of the engaged and disenga ged positions freely. All four hitch pins used for height adjustment should sit flush on the washers above the deck pin bushing. On a level surface, if any pin is sticking up (likely the front pins), tighten the opposit e side or loosen the same side to lower the pin. Adjustments are made by loosening the jam nut and tightening or loosening the set screws on the Deck Mount Pivot Brackets. Retighten the jam nut when the adjustment is complete.

Locknut

(Position)

Locknut

(Pivot Point)

Jam Nut

Set Screw

Tilt-Up Deck Adjustable Stop

GHS Signal Horn Adjustment (When Horn Sounds at Wrong Time)

DANGER

PINCH POINT - SPRING LOADED DOOR

When lowering the door on the GHS catcher, depress the safety latch on the side of the catcher. BE VERY CAREFUL to keep hands, fingers, etc. out of the hinging mechanism and away from the door frame as the door closes. The springs that hold the door closed during operation are very powerful, and the door can slam shut with considerable force.

The vertical position of the Grass-Pak ical to make sure the catche r box does not overfill causing the delivery chute to clog. The vert ical position can be adjusted by bending the mounting bracket for the Grass-Pak

switch.

switch is crit-

Maintenance Instructions ADJUSTMENTS

1. Position the discharge chute s o that it is pointing straight back.

a. Turn the ignition switch ON and move the

blade clutch to the ENGAGED position (engine not running).

b. Open the catcher back door and monitor

the spout position (as it oscillates) and move the blade clutch to the DISEN- GAGED position and turn the ignition switch to the OFF position.

WARNING

DO NOT test the Grass-Pak® switch with the engine running. Projectiles CAN be thrown out of the grass delivery spout and CAN cause serious injury to bystanders or property damage.

2. Measure from the exhaust screen (top of catcher) to the top of the Grass-Pak vane, as shown. The proper measurement should be betwe en 4 and 4-1/2 inches (1 0.16 and 11.43 cm).

switch actuator

3. If adjustment is required, hold th e Grass-Pak switch mount bracket firmly, grasp the switch and bracket and bend it down. Adjustments should be done in very small increments checking the measurement each time until the recommended measurement is achieved. This measurement is applicable to all catcher box sizes.

NOTE: It will not be po ssible to adjust t he switc h to give a signal at the precise instant the catcher is full for a wide variety o f mow ing co ndi tio ns . F or ex am ple, wet heavy grass will fill the catcher differently than dry fluffy grass, caus ing the s ignal to com e on a little sooner or later than usual. Primarily, the switch should be adjusted to give the “full” signal with a little advance warning before overfilling and clogging of the grass delivery chute begins (regardless of mowing conditions).

Bend Point

Adjusting the Grass-Pak

(Side view of Catcher Box)

Exhaust

Screen

4 to 4-1/2 in.

Switch

0$,17(1$1&($1'6(59,&(5(&25'6+((7

DATE SERVICE ENGINE

ITEM HOURS

BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB

8VHRQO\JHQXLQH:DONHUUHSODFHPHQWSDUWV

Operator’s Notes

LIMITED W ARRANTY

FOR

WALKER

COMMERCIAL RIDER MOWER

1. WHAT THIS WARRANTY COVERS, AND FOR HOW LONG:

Walker Manufacturing company will, at its option, repair or replace, without charge, any p art covered by this warranty which is found to be defective in material and/or workmanship within one (1) year* after date of sale to the original retail purchaser unless the product is used for rental purposes, in which case this warranty is limited to ninety (90) days. At Walker’s request, customer will make the defective part available for inspection by Walker and/or return the defective part to Walker, transportation charges prepaid. All parts and components of the Walker Mower are covered by this warranty except the following components which are warranted separately by their respective manufacturers:

Kohler Engine Kubota Engine Kawasaki Engine Eaton Hydraulic Transmission Peerless Gearboxes Battery Tires

The available warranties covering these items are furnished with each mower. Walker does not assume any warranty obligation, liability or modification for these items, which are covered exclusively by the stated warranty of the respective manufacturers noted above.

* An extended three (3) year warranty is offered on the Walker P/N 6200-9 Gear Axle Assembly.

2. WHAT THIS WARRANTY DOES NOT COVER:

A. This warranty does not cover defects caused by depreciation or damage caused by normal wear, accidents, improper

maintenance, improper use or abuse of the product, alterations, or failure to follow the instructions contained in the Owner’s Manual for operation and maintenance.

B. The customer shall pay any charges for making service calls and/or for transporting the mower to and from the place

where the inspection and/or warranty work is performed.

3. HOW TO OBTAIN SERVICE UNDER THIS WARRANTY:

Warranty service can be arranged by contacting the dealer where you purchased the mower or by contacting Walker Manufacturing Company, 5925 East Harmony Road, Ft. Collins, CO 80525. Proof of the date of purchase may be required to verify warranty coverage.

4. WARRANTY LIMITATION:

A. THERE IS NO OTHER EXPRESS WARRANTY. ANY WARRANTY THAT MAY BE IMPLIED FROM THIS

PURCHASE INCLUDING MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE IS HEREBY LIMITED TO THE DURATION OF THIS WARRANTY AND TO THE EXTENT PERMITTED BY LAW ANY AND ALL IMPLIED WARRANTIES ARE EXCLUDED. Some states do not allow limitations on how long an implied warranty

lasts, so the above limitations may not apply to you.

B. WALKER WILL NOT BE LIABLE FOR ANY INCIDENTAL, CONSEQUENTIAL, OR SPECIAL DAMAGES AND/OR

EXPENSES IN CONNECTION WITH THE PURCHASE OR USE OF THE MOWER. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the above limitation(s) or exclusion(s) may not apply to you.

C. Only the warranty expressed in this limited warrant y shall apply and no dealer, distributor, or individual is authorized

to amend, modify, or extend this warranty in any way. Accordingly, additional statements such as dea ler advertising or presentations, whether oral or written, do not constitute warranties by Walker, and should not be relied upon.

D. This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

Lwa

LpA

OPERATOR

Sound - Model MS

Sound Test

Sound test conducted was in accordance with 79/113/EEC and was performed on 22 March 96 under the conditions listed:

General Condition: Clear

T empera ture: 50 (F) Wind Speed: < 5 mph (< 8 kmh) Humidity: 52% Barometric Pressure: 24.9" HG (759 mm Hg)

10 (C)o

Vibration - Model MS

Vibration Level

Vibration levels at the operators handles were measured in the vertical, lateral, and

0.4g

longitudinal directions using calibrated vibration test equipment.

Tests were performed on 22 March 96 under the conditions listed:

General Condition: Clear

Temperature: 50 (F) Wind Speed: < 5 mph (< 8 kmh) Humidity: 52% Barometric Pressure: 24.9" HG (759 mm Hg)

10 (C)o

WALKER MFG. CO. • 5925 E. HARMONY ROAD, FORT COLLINS, C O 80528 • (970) 221-5614

Walker MS 13 HP User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Foreword

Table of Contents

General Information________________ 1

Specifications________________________ 3

Component Identification___________ 7 Safety Instructions _________________ 10

Assembly Instructions _____________ 16

Operating Instructions_____________ 24

Maintenance Instructions__________ 40

Maintenance and Service Record Sheet

Operator’s Notes___________________ 66 Warranty___________________________ 67

General Information

HIGHLIGHTED INFORMATION

GLOSSARY

IDENTIFYING NUMBER LOCATIONS

Tractor Serial Number Location

SERVICING OF ENGINE AND DRIVETRAIN COMPONENTS

Mower Deck Serial Number Location

ENGINE SERIAL NUMBER LOCATION

Engine Serial Number Location (view from right side of tractor)

Specifications

ENGINE

ELECTRICAL SYSTEM

TRANSMISSION

BLADE DRIVE

TIRE SIZE

TIRE PRESSURE

MOWER DECK

DRIVE BELTS

SEAT

FRAME/BODY CONSTRUCTION

Component Identification

Front View and Right Side View

Rear View and Left Side View

Top View (Body Raised)

Safety Instructions

BEFORE OPERATING

OPERATING

MAINTENANCE

SAFETY, CONTROL, AND INSTRUCTION DECALS

SAFETY, CONTROL, AND INSTRUCTION DECALS

Assembly Instructions

SETUP INSTRUCTIONS

Tire Installation (Tractor)

Dry Battery Servic e

Battery Service

Wet Battery Service

Battery Charging

Battery Installation

Battery Installation

Mower Deck Assembly

Deck Caster Wheels Installation

Deck Caster Wheel Installation

Deck Discharge Shield Installation (Side Discharge Models Only)

Deck Discharge Chute Installation (GHS Rear Discharge Models Only)

PTO Shaft Guard Installation

Tilt-Up Roller Wheel Installation

Mower Deck Installation on Tractor

Deck Installation

Mower Deck Installation/PTO Shaft Connection

Deck Counterweight Spring Installation

Deck Leveling

Deck Leveling

PREOPERATING CHECKLIST

Deck Secured in Tilt-Up Position

Operating Instructions

CONTROL IDENTIFICATION, LOCATION, AND FUNCTION

Ignition Switch

Engine Choke

Operating Controls

Engine Throttle

Choke and Throttle Location

Forward Speed Control (FSC)

Steering Levers

Blade Clutch (PTO)

Parking Brake

Transmission Lockout Levers

Component Identification_ 7 Safety Instructions _______ 10

Operator’s Notes_ 66 Warranty_________ 67